[flang] Merge pull request flang-compiler/f18#53 from ThePortlandGroup/tsk6

Resolve array specifications of entities.

Original-commit: flang-compiler/f18@9abf24ab2fb38e82992eecf3fc3d53c3a4334672
Reviewed-on: https://github.com/flang-compiler/f18/pull/53

[flang] Resolve array specifications of entities.

Add ArraySpecVisitor to recognize the various forms of array specifications.
They are tracked in arraySpec_ and attrArraySpec_. Both are needed because
a declaration like `integer, dimension(4) :: x(2,2), y` has two different
array-specs.

The method DeclareEntity was extracted out to handle the common part for
EntityDecl, ObjectDecl, and DimensionStmt. AllocatableStmt and TargetStmt
are now handled through their contained ObjectDecl.

The test resolve07 checks the interactions between these kinds of declarations.

Rename ComponentArraySpec to ArraySpec as it doesn't just occur in components.

Fix some 'begin' and 'end' methods to start with upper-case letters.

Original-commit: flang-compiler/f18@3d4d7430b559a135a3eddf8291449106195406a0
Reviewed-on: https://github.com/flang-compiler/f18/pull/53

[flang] Merge pull request flang-compiler/f18#52 from ThePortlandGroup/tsk8

Improve include file sorting.

Original-commit: flang-compiler/f18@c36717a5e006b102d78a9ceabc1870e2852c7933
Reviewed-on: https://github.com/flang-compiler/f18/pull/52

[flang] Improve include file sorting.

Includes like "../dir/file.h" should sort after local includes.
This change fixes that and applies the new formatting.

Now the order (in reverse) is:
- system includes
- includes from llvm or clang (this is from the default IncludeCategories)
- includes of ../something
- everything else

Original-commit: flang-compiler/f18@324643d63a1842ddfea9ea2a70ebb363f9ced8cc
Reviewed-on: https://github.com/flang-compiler/f18/pull/52

[flang] Merge pull request flang-compiler/f18#51 from ThePortlandGroup/sch_types

add missing accessors to types

Original-commit: flang-compiler/f18@9b54154c63b8e6424c2727c51716de289e75ff39
Reviewed-on: https://github.com/flang-compiler/f18/pull/51

[flang] run clang-format

Original-commit: flang-compiler/f18@f40a1dd9c849cb49ac6c3d656dfd8141a88cf068
Reviewed-on: https://github.com/flang-compiler/f18/pull/51

[flang] add accessor to derived type definition

Original-commit: flang-compiler/f18@d971f4f1acd9e1e2cfb76c390a671238f39e6951
Reviewed-on: https://github.com/flang-compiler/f18/pull/51
Tree-same-pre-rewrite: false

[flang] Add missing accessors in 'type' classes

Original-commit: flang-compiler/f18@42a46f35e82661e0f0a2c62d12448072dabcd5f7
Reviewed-on: https://github.com/flang-compiler/f18/pull/51
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#49 from ThePortlandGroup/tsk6

Continue work on name resolution.

Original-commit: flang-compiler/f18@7e271af1e5f8397441963802b1dff10e66fcf9ac
Reviewed-on: https://github.com/flang-compiler/f18/pull/49

[flang] Use ENUM_CLASS macro for Scope::Kind.

Original-commit: flang-compiler/f18@3492e8d247c33e1053170df0c7bb552608c5234f
Reviewed-on: https://github.com/flang-compiler/f18/pull/49

[flang] Continue work on name resolution.

In Symbol and Scope, use SourceName (== parser::CharBlock) in place of
Name (== std::string) so that names in the symtab have provenance. We
may ultimately have multiple source locations associated with a symbol.

ImplicitRules: Add isImplicitNoneType and isImplicitNoneExternal flags.

MessageHandler: Add methods to emit messages associated with source
locations.

Detect conflicting declarations of symbols (e.g. as subprogram and
variable).

Handle attribute statements like ASYNCHRONOUS statement: make sure the
symbol is present and set the attribute on it. Check that these all have
a type declared by the end of the specification part if IMPLICIT NONE.

Find variables named in Variable and Expr nodes and check they have
types declared if IMPLICIT NONE. Otherwise, make sure they are in the
symtab and apply the implicit type rules at the end of the scope.

Push a scope for MainProgram nodes and add a symbol for the name if it
has one.

Rename Scope::map_type to Scope::mapType

Add tests for errors currently being detected. There is no framework for
running them yet, just source files with the expected errors in
comments.

Original-commit: flang-compiler/f18@39e6fa4169644b2c2b94ee611949fbc0766599a2
Reviewed-on: https://github.com/flang-compiler/f18/pull/49
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#48 from ThePortlandGroup/pmk-nag-h

Parse NAG tests (no execution)

Original-commit: flang-compiler/f18@b18347b098b050ef95e8fc6ea5b894f575a2a933
Reviewed-on: https://github.com/flang-compiler/f18/pull/48

[flang] Document support for CONVERT= extension.

Original-commit: flang-compiler/f18@a4674f074354fbfb169d6402b0afec411c769b2a
Reviewed-on: https://github.com/flang-compiler/f18/pull/48

[flang] Add length check so that memcmp() on source does not go past the end of input and make valgrind complain.

Original-commit: flang-compiler/f18@475e9db03548bd45ae81201561579de3119d6587
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Fix unparsing of renamed operators in USE statements.

Original-commit: flang-compiler/f18@4152b604e31c8f685d3d19493d9459e9f7258863
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Always put parens on unparsed ENTRY statement in case there is a suffix.

Original-commit: flang-compiler/f18@d0d1a5789b1fc49dfcac44f5082e600ee85da453
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Fix unparsing of pointer-decls with deferred shape.

Original-commit: flang-compiler/f18@3c7c7eced5898e92692dcce1584b014f046c5283
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Repair negative scale factors in formats.

Original-commit: flang-compiler/f18@0e90d2db3a05a7c3f4f52aa02de87ecfaf55d48d
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Tweak recent disambiguations after more testing.

Original-commit: flang-compiler/f18@82fb9838b98da2215513477f83657058aca515d1
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Remove a needless std::move() call, and be more careful about line continuation.

Original-commit: flang-compiler/f18@e26421513fd8d55680bf3b5a261c7aee036d9318
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Remove some needless std::move() calls for readability.

Original-commit: flang-compiler/f18@88aadf45dccb6c7fe0443345842d6ecced2258bd
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Better solution in grammar for a data statement value parse.

Original-commit: flang-compiler/f18@05b437506af704b59d120bb516c5a1658f504987
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Handle pp-directives amid continuations correctly, and fix a Hollerith ambiguity.

Original-commit: flang-compiler/f18@dcd7820a97c7ca7617b0a2848e2310d4c2b2c848
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Adjust TODO messages to reflect deliberate behavior.

Original-commit: flang-compiler/f18@9636998ee44439e46e10bcfe0bbb6e6e74b14c6f
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Fix naming: list_type -> listType

Original-commit: flang-compiler/f18@9bf6adc41cc5d5209647722a04a8f6c3e935fdb1
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Rearrange alternatives in data statement values to put longer parse earlier.

Original-commit: flang-compiler/f18@867cefaafbc135bde1033b9e28d055250c44baca
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Prevent misrecognition of a digit string that is the kind parameter of a character literal from being misrecognized as an integer literal.

Original-commit: flang-compiler/f18@bd7ed0b162b7cc4e89e0d08e22e8676d59261931
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Parse unlimited format item -- needed to adjust its precedence in grammar.

Original-commit: flang-compiler/f18@318bebe485a3104c78cad7b74d693678fcc65030
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Parser mistakenly attempted error recovery in specification part when it saw END statement with label.

Original-commit: flang-compiler/f18@69b8ad8380a36502a41abf247478c232979f38f6
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Fix two errors in the grammar (array constructors with type but no values did not consume the ::, and ERR= was omitted from CLOSE().  Add CONVERT= extension to OPEN().

Original-commit: flang-compiler/f18@e3e584f06083166ae9e69375de2831bcd9dd4923
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Crash more gracefully when files include themselves.

Original-commit: flang-compiler/f18@6da9ec422824b7e86b10bb368fedd5b734063ce8
Reviewed-on: https://github.com/flang-compiler/f18/pull/48
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#43 from ThePortlandGroup/pmk2

Avoid most uses of Boolean-valued Pre() callbacks in unparse.cc.

Original-commit: flang-compiler/f18@1b8ff5f07de4a7c7d70454aeaf708407d1be8edc
Reviewed-on: https://github.com/flang-compiler/f18/pull/43

[flang] Avoid most uses of Boolean-valued Pre() callbacks in unparse.cc.

Original-commit: flang-compiler/f18@f4ea2f94f3fa3b228eb18ae68eac8b22d02c7a83
Reviewed-on: https://github.com/flang-compiler/f18/pull/43

[flang] Merge pull request flang-compiler/f18#46 from ThePortlandGroup/tsk8

Change API of Scope to match std::map

Original-commit: flang-compiler/f18@e34e2ac0c8feba4e95f141bc84b3007cf57c185e
Reviewed-on: https://github.com/flang-compiler/f18/pull/46

[flang] Address review comments.

Make map_type private -- it is not part of the API.

Add cbegin() and cend().

Original-commit: flang-compiler/f18@1ad699dbfdcab2c3960b1dda438572d23dcffbb4
Reviewed-on: https://github.com/flang-compiler/f18/pull/46

[flang] Change API of Scope to match std::map

The Scope can be thought of as (among other things) a mapping of Name to
Symbol. This change reflects that by changing the API to match std::map.

Original-commit: flang-compiler/f18@37f6ad73ccf37439c7b0c57d7c2bbf12b65ed751
Reviewed-on: https://github.com/flang-compiler/f18/pull/46
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#45 from ThePortlandGroup/sjs-doc

Add snippet about trigraphs

Original-commit: flang-compiler/f18@c4a397e501efa5d880ccf41f603926149302c1dc
Reviewed-on: https://github.com/flang-compiler/f18/pull/45

[flang] Add snippet about trigraphs

Original-commit: flang-compiler/f18@551f2ccd06861f317bfb6fe092c2274af3fc96c1
Reviewed-on: https://github.com/flang-compiler/f18/pull/45

[flang] Merge pull request flang-compiler/f18#41 from ThePortlandGroup/tsk6

 Collect implicit type rules and report related errors.

Original-commit: flang-compiler/f18@ff4f1432811bffce66d88f69da0308bfbff98f20
Reviewed-on: https://github.com/flang-compiler/f18/pull/41

[flang] Address review comments.

Maintain stack of ImplicitRules in parallel with the scope stack.
I doesn't have to live as long as the scopes.

Allow for '_', '$', and '@' in ImplicitRules if they come through from
the parser.

Original-commit: flang-compiler/f18@b70e9fc9564a2cae40fce71ee7c035a502bdb7f3
Reviewed-on: https://github.com/flang-compiler/f18/pull/41

[flang] Address code review comments.

Original-commit: flang-compiler/f18@b0dd8959057e14531ffc0e6dbc63c3cef4932997
Reviewed-on: https://github.com/flang-compiler/f18/pull/41
Tree-same-pre-rewrite: false

[flang] Collect implicit type rules and report related errors.

ImplicitRules maintains a mapping of initial character of an identifier
to its implicit type.

ImplicitRulesVisitor visits the ImplicitStmt and related parse tree
nodes and updates the rules.

Emit errors messages in these cases:
- implicit type specified more than once for a letter
- IMPLICIT statement and IMPLICIT NONE in same scope
- IMPLICIT statement and IMPLICIT NONE(TYPE) in same scope
- more than one IMPLICIT NONE in a scope
- IMPLICIT statement with empty range of letters
- IMPLICIT NONE statement after PARAMETER statement
- TYPE or EXTERNAL repeated in an IMPLICIT NONE statement

Also start emitting error messages through the parser::Messages
interface. An instance of Messages is created from the cooked source and
saved in the MessageHandler class. It tracks the source location of the
current statement and provides a way to emit messages associated with
that statement.

Original-commit: flang-compiler/f18@e12fea98502883dbcafb7627d45deb2a6aa6098d
Reviewed-on: https://github.com/flang-compiler/f18/pull/41
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#42 from ThePortlandGroup/pmk1

Generalize Attrs for arbitrary enums, implement with std::bitset<>.

Original-commit: flang-compiler/f18@28a9fc0b9e4a387678eb05395ed6d888e1b88912
Reviewed-on: https://github.com/flang-compiler/f18/pull/42

[flang] Address review comments.

Original-commit: flang-compiler/f18@66ecc10722135e5f9f3f8d68ac6795a4ba5e0727
Reviewed-on: https://github.com/flang-compiler/f18/pull/42

[flang] Generalize semantics/attr.h into enum-set.h, implementing it atop std::bitset.

Original-commit: flang-compiler/f18@d827c8bcc318dd8e740ca00e2176d428c1baadf7
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Improvements to memory-mapped source files.

Original-commit: flang-compiler/f18@67066468e5de31fc8e6e392236d545662d2bb801
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Avoid having too many file descriptors open or using mmap() for small files.

Original-commit: flang-compiler/f18@750483a1bef7fb4bef59e6b13e2bc34e98ec379a
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Correct order of steps in idealized preprocessor description.

Original-commit: flang-compiler/f18@3107999501a1d81861c3f578ca78787244a9f026
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Do not allow "-" to denote standard input on INCLUDE/#include.

Original-commit: flang-compiler/f18@f645036a16c19d5ba946bc7405197a2205dff751
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Fix __VA_ARGS__, was broken due to typo.

Original-commit: flang-compiler/f18@ba90b1fc27fc18ba045a033ec27e458cd6b2e958
Reviewed-on: https://github.com/flang-compiler/f18/pull/42
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#39 from ThePortlandGroup/pmk-recovery2

Error recovery in specification parts

Original-commit: flang-compiler/f18@074ce568ff43038568418b299b1027471620e338
Reviewed-on: https://github.com/flang-compiler/f18/pull/39

[flang] Resolve some TODOs in the grammar.

Original-commit: flang-compiler/f18@6ef9e2388bfc7f9b7ac5966196d9e1918220d797
Reviewed-on: https://github.com/flang-compiler/f18/pull/39

[flang] Error recovery for specification part.

Original-commit: flang-compiler/f18@187075c7a052c3d38760890c63127b4016be383a
Reviewed-on: https://github.com/flang-compiler/f18/pull/39
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#38 from ThePortlandGroup/pmk-recovery

Messaging and error recovery work

Original-commit: flang-compiler/f18@073210bf91ddc91e7f2e773861d9a40a2fd34de4
Reviewed-on: https://github.com/flang-compiler/f18/pull/38

[flang] Address review comments (thanks!).

Original-commit: flang-compiler/f18@1e61fbaeae5402fcd0c732de244bfe02aadfe6ff
Reviewed-on: https://github.com/flang-compiler/f18/pull/38

[flang] Add documentation.

Original-commit: flang-compiler/f18@4114c9e695ff740199ec015a041be3ac0fa8b779
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] More clean-up in token-parsers.h.

Original-commit: flang-compiler/f18@320213454237dcda9011f2ee48c258c118d83f0c
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Debugging and a TODO.

Original-commit: flang-compiler/f18@4fab40bc37e870e3b4fa039d51d7cc8b672f2f36
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Better error recovery, some debugging.

Original-commit: flang-compiler/f18@b7509f0e5be796e0b29a481215f3950c8276d76d
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Revamp messaging.  Add ""_err_en_US to denote fatal error messages.

Original-commit: flang-compiler/f18@7ddc807a1bb6b33613ebdfab9c089bb2eabdcea9
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Fix debug-parser.h after recent merge.

Original-commit: flang-compiler/f18@97b6df606c4add591c212ff4b8aa5f4b8e3de765
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Fix indentation bug in unparsed output that I introduced in last merge.

Original-commit: flang-compiler/f18@aa0ba5acacc02a360504661e457446a370dff4c2
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Work around clang-format issue by using "auto" where type is obvious.

Original-commit: flang-compiler/f18@7499bccaa938547d3af29c7b859f1fede2e718be
Reviewed-on: https://github.com/flang-compiler/f18/pull/38
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#36 from ThePortlandGroup/tsk6

Continue work on name resolution

Original-commit: flang-compiler/f18@acaee7b44f4d9fd87800032eb385685407343eb8
Reviewed-on: https://github.com/flang-compiler/f18/pull/36

[flang] Fix bug parsing "implicit none(type)"

"implicit none(type)" was being recognized as "implicit none(external)".

Original-commit: flang-compiler/f18@0cc88678369afa49b8e435eb5e9d43fc119b37d0
Reviewed-on: https://github.com/flang-compiler/f18/pull/36

[flang] Respond to review comments.

Original-commit: flang-compiler/f18@d2497a6485e1dc8ea5fc7ba1dfb01d7603f57bfa
Reviewed-on: https://github.com/flang-compiler/f18/pull/36
Tree-same-pre-rewrite: false

[flang] Continue work on name resolution

Enhance DeclTypeSpecVisitor to find derived-type-specs, including with
type parameter values.

Change DerivedTypeSpec so it only needs the name of the derived type,
not the definition, as that isn't necessarily known when we encounter
it.

Fix how memory is managed in DeclTypeSpec: Intrinsic type specs aren't a
problem -- they are one of a few types that live throughout the program.
Derived type specs are dynamically allocated and the memory is owned by
the DeclTypeSpec -- it allocates it when a DeclTypeSpec for a derived
type is created and deletes it when it is destroyed. Pass around
references to TypeSpecs rather than pointers as they can never be null.

In AttrsVisitor, DeclTypeSpecVisitor, ResolveNamesVisitor: make most
functions out-of-line to clean up the class declaration.

In AttrsVisitor, use preprocessor to simplify the simple case of
encountering a parse-tree class causing an attribute to be set.
Handle all such attributes.

Remove old testing code from type.cc.

Remove some of the declarations for IntExpr and IntConst -- they are
only placeholder classes anyway. Don't distinguish kind and length
parameter values.

Original-commit: flang-compiler/f18@e172b5121274a3cfc597f062da1ea32aa56039d9
Reviewed-on: https://github.com/flang-compiler/f18/pull/36
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#37 from ThePortlandGroup/pmk-minor

Roll up some small changes to resolve TODOs

Original-commit: flang-compiler/f18@e3d5b7256c787848d58f3696111963912a115f20
Reviewed-on: https://github.com/flang-compiler/f18/pull/37

[flang] Elide a useless local variable that used to be a formal argument.

Original-commit: flang-compiler/f18@419b5d07eeccda8bf2320b2adce0bb5adb55b0fd
Reviewed-on: https://github.com/flang-compiler/f18/pull/37

[flang] Debugging after testing.  Take care of a TODO in the prescanner.

Original-commit: flang-compiler/f18@4c8181e106fd73b145208ce987abb702a72fee87
Reviewed-on: https://github.com/flang-compiler/f18/pull/37
Tree-same-pre-rewrite: false

[flang] Debugging, and resolve another TODO in unparse.cc.

Original-commit: flang-compiler/f18@edeb283cd5bd730e7284e3d894c1e1ffa8d1c313
Reviewed-on: https://github.com/flang-compiler/f18/pull/37
Tree-same-pre-rewrite: false

[flang] Look for declared STRUCTURE component names after a . rather than defined operator names.

Original-commit: flang-compiler/f18@cf6480955148152e644e677b4901e30370c72c9c
Reviewed-on: https://github.com/flang-compiler/f18/pull/37
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#35 from ThePortlandGroup/pmk-spaces

Warn about missing spaces in free form

Original-commit: flang-compiler/f18@2cf8391737e2e4254ce4a48152b468e99c1f0d12
Reviewed-on: https://github.com/flang-compiler/f18/pull/35

[flang] Remove some needless checks for mandatory spaces before keywords and names that could not be present anyway, they were slowing things down.

Original-commit: flang-compiler/f18@a07b78d2d76c994d0594fba6c38d3b98f3d03e9f
Reviewed-on: https://github.com/flang-compiler/f18/pull/35

[flang] Use "..."_sptok rather than ~ in tokens to denote mandatory spaces.

Original-commit: flang-compiler/f18@1b22874a9da595c0496618263e585ced5b6be312
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] "free from" -> "free form" in comment.

Original-commit: flang-compiler/f18@39231666734e1e7135f2e0f4227979cb1cb28b4f
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] Update documentation.

Original-commit: flang-compiler/f18@7045fbcd0c3412d990c9c7d2af963765dbb2395f
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] Make functions inline to recoup performance.

Original-commit: flang-compiler/f18@7f8705304d871d7568eea9ee047eaf418d7349c0
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] Debugging.

Original-commit: flang-compiler/f18@84e0cc75498b61905e699dab6ae8762dd938cf4d
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] Emit warnings in free form when a required space is missing.

Original-commit: flang-compiler/f18@e41917d144354271c5f58cbd6033ef704d0e08c7
Reviewed-on: https://github.com/flang-compiler/f18/pull/35
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#34 from ThePortlandGroup/pmk-cdir

Support compiler directives in the prescanner and parser.

Original-commit: flang-compiler/f18@bc625a6cdd4399af7965c112ede00b7461375e71
Reviewed-on: https://github.com/flang-compiler/f18/pull/34

[flang] Begin work on missing space warnings in free form.  Reformat C++.

Original-commit: flang-compiler/f18@1bcbf0eb7bb216e14076cc1b83f1f7a2c3f75340
Reviewed-on: https://github.com/flang-compiler/f18/pull/34

[flang] Add MinSizeRel to .gitignore.

Original-commit: flang-compiler/f18@068e2e4465a22ecfcc32f84a3077d52eca23e531
Reviewed-on: https://github.com/flang-compiler/f18/pull/34
Tree-same-pre-rewrite: false

[flang] Simplify test-type and test-sema to use parser::Parsing wrapper class.

Original-commit: flang-compiler/f18@3741a652eda98669481923ddf250cf2fd6a9bac6
Reviewed-on: https://github.com/flang-compiler/f18/pull/34
Tree-same-pre-rewrite: false

[flang] Resolve merge with code pushed to master.

Original-commit: flang-compiler/f18@d75d86f28e9d1651fa6051e3700afeb48ba9c5d3
Reviewed-on: https://github.com/flang-compiler/f18/pull/34
Tree-same-pre-rewrite: false

[flang] Clean out obsolete parsing code.  Handle !cdir$ fixed and free in parser.

Work on scanning compiler directive lines.

Fix glitch in earlier change to parse-state.h.

Add ClassifyLine(), simplify some token sequence data lifetimes and interfaces.

Handle continued directives.  Obey !DIR$ FIXED and FREE in prescanner.

Some refactoring of TokenSequence API, then support initial directives (FIXED, FREE, IGNORE_TKR).

Fix !DIR$ IGNORE_TKR syntax, manual was wrong.

Debugging directive scanning & parsing.

Profiling-directed speed-up - do not map cooked source locations to Provenance until a Message is emitted.  Turn some non-nullable pointers into references.

Debugging.

Handle !DIR$ IVDEP too, it is in a test.

Accept directives in the execution part.

Original-commit: flang-compiler/f18@fb2ff367ec0609b7307771f927f22fd7bab5e180
Reviewed-on: https://github.com/flang-compiler/f18/pull/34
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#24 from ThePortlandGroup/sch_sema

Add initial semantic analysis on statements

Original-commit: flang-compiler/f18@68bb9f670ddbaf71ca735d4d7241ef4f67720e22
Reviewed-on: https://github.com/flang-compiler/f18/pull/24

[flang] Merge branch 'sch_sema' of https://github.com/ThePortlandGroup/f18 into sch_sema

Conflicts:
lib/parser/parse-tree.h
lib/semantics/CMakeLists.txt
tools/f18/CMakeLists.txt
tools/f18/test-sema.cc

Original-commit: flang-compiler/f18@2282b5759ba6fa9d8f8003d499fa114b869723b6
Reviewed-on: https://github.com/flang-compiler/f18/pull/24

[flang] Remove files in include/flang/Sema/

Original-commit: flang-compiler/f18@779131941447f0c69f635900b1d2640bc0b8e67a
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Merge with current master and move code to lib/semantics/

Original-commit: flang-compiler/f18@8b31a01102072a855e1c53d642d8c51128e84477
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] commit before rebase master

Original-commit: flang-compiler/f18@77f6a25f8ab6245b9f180341871e5729799c422a
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Commit changes made while at Portland. Some of them will disapear

Original-commit: flang-compiler/f18@0972ffe1852257203a0c2aa32e8f1603dd1411f7
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Provide an emacs style for editing Flang C++ sources

Original-commit: flang-compiler/f18@e9922dda1d1d17d8d4c98318703f2de4efc9e766
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] remove long comment

Original-commit: flang-compiler/f18@c20912629b72655f7fcc7dfdfc0484ae10f4bf1a
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] several changes following pull comments

Original-commit: flang-compiler/f18@ba1275a7cb5d13a022302294603df9164a55b667
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Implement dump of parse-tree

Original-commit: flang-compiler/f18@ca6dbfc4776663f362894421c15e504e534ef097
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] remove unused member

Original-commit: flang-compiler/f18@1d39fd8c5ffb49aba9abbe586ad1e0f5f09d342f
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Mostly code cleanup

Original-commit: flang-compiler/f18@f78fef7a17b4106540ac56f97bd9e00f35073602
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] Fix misc issues with closing of LabelDo

Original-commit: flang-compiler/f18@8134331da8a21b40f6c61bc371f3af66bf3662c0
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false

[flang] add resolution of CYCLE target construct

Original-commit: flang-compiler/f18@669ab24267cfa11bcfc85cf8227c1dd4328c2fc0
Reviewed-on: https://github.com/flang-compiler/f18/pull/24
Tree-same-pre-rewrite: false