[flang] Fix bug#389, prevent std::move() on forwarded lvalue references

Original-commit: flang-compiler/f18@9d61c091ad3843056741b0bd4791cec1ac7a583e
Reviewed-on: https://github.com/flang-compiler/f18/pull/390
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#388 from flang-compiler/check-nullify

Check semantic constraints for the nullify statement.

Original-commit: flang-compiler/f18@a2f19b65636f2a6858252a229664767a6e475310
Reviewed-on: https://github.com/flang-compiler/f18/pull/388

[flang] Use structureComponent.component.symbol directly instead of getting
the symbol from the result of expression analysis.  (This opens the
door to moving structure component semantic checking to expression
analysis.)

Also, improve error messages, remove unused include files, and add
copyright headers to test files.

Original-commit: flang-compiler/f18@17780c40d7380db9760e972dcc52724838cd89d8
Reviewed-on: https://github.com/flang-compiler/f18/pull/388

[flang] Check semantic contraints for the nullify statement. The full
legality check is up to the user; however, some checks could
be done at compile time and others at runtime.  We choose to
skip any checking at compile time because it would not be
complete.

Note the instantiation of ExtractDataRef in expressions.cc.
This instantiation satifies the reference in check-nullify.cc
because expression.h just has a declaration of ExtractDataRef
instead of the definition.

Original-commit: flang-compiler/f18@b7199219fbf9e833be6e745d498e99936c2e68b2
Reviewed-on: https://github.com/flang-compiler/f18/pull/388
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#385 from schweitzpgi/fir3

fix some bugs with use of std::move

Original-commit: flang-compiler/f18@5569e8ede27196c38fb1a4ae9f11f8b649b629a1
Reviewed-on: https://github.com/flang-compiler/f18/pull/385

[flang] more fine-tuning of mixin classes to get lightweight constructors,
handle copies and moves, etc.

Original-commit: flang-compiler/f18@72a776b4c10f5b09a51df03e1afa7ada5a8aae31
Reviewed-on: https://github.com/flang-compiler/f18/pull/385

[flang] use std::forward, avoid std::move usage bugs

Original-commit: flang-compiler/f18@0d66bc243919a46a518067c59881e82e32552f62
Reviewed-on: https://github.com/flang-compiler/f18/pull/385
Tree-same-pre-rewrite: false

[flang] anchor virtual dtor

Original-commit: flang-compiler/f18@7121ccecb2960383d3273fd38e5b5642758df808
Reviewed-on: https://github.com/flang-compiler/f18/pull/385
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#387 from flang-compiler/tsk3

Update the grammar with team-value

Original-commit: flang-compiler/f18@b8e95dcd1d08f31a109d05ea9a161b89a4eef4fc
Reviewed-on: https://github.com/flang-compiler/f18/pull/387

[flang] Update the grammar with team-value

Everywhere we had `team-variable` except for the FORM TEAM statement is
now `team-value`, according to the N2162 draft standard. The grammar
and parse tree are updated to reflect that.

The addition of the production for `team-value` caused productions
R1177-R1181 to have their numbers increased by one.

Original-commit: flang-compiler/f18@9071f0a35240f3451032b0abb077451182ace6ec
Reviewed-on: https://github.com/flang-compiler/f18/pull/387

[flang] Merge pull request flang-compiler/f18#386 from flang-compiler/pmk-sjs-reshape-bug

Shape analysis

Original-commit: flang-compiler/f18@47fc2c4b2cfc55663ac6d87bf7e203770d954854
Reviewed-on: https://github.com/flang-compiler/f18/pull/386

[flang] Address review comments

Original-commit: flang-compiler/f18@20cef2db45dc113eff30bcc9a565398213fcf417
Reviewed-on: https://github.com/flang-compiler/f18/pull/386

[flang] Remove hash from expected module file output

Original-commit: flang-compiler/f18@8da47c44d2dff3a887df029241fbdf15d734c329
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] Fix implied DO folding with negative strides, add test

Original-commit: flang-compiler/f18@2e14b76041c79f5861fb2f912a93572130e08d17
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] Remove a needless Indirection

Original-commit: flang-compiler/f18@eb637232b19059563d5540a454d3392002de1ed8
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] More folding of SIZE()

Original-commit: flang-compiler/f18@23f62fea1d076311bc4fd63d7b749fbb8423763c
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] Simplify expression visitor usage

Original-commit: flang-compiler/f18@9ab121d6a6dc96b12042a242e5b4eec903455990
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] complete GetShape, compile

Original-commit: flang-compiler/f18@ff124f69a9c4a23f51004b332736fbb1f47c431a
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] fix original failure (reshape intrinsic argument check)

Original-commit: flang-compiler/f18@8bba330b32d928a5cf5d581d139c0cec02294b58
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] clean up CoarrayRef

Original-commit: flang-compiler/f18@41bef37c7c859ae87ebe56f730cb43703c58da25
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] Begin shape analysis

Original-commit: flang-compiler/f18@888166c97e83a244e183aac95e7a706b8d154ab9
Reviewed-on: https://github.com/flang-compiler/f18/pull/386
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#384 from flang-compiler/tsk4

Support coarrays in name resolution

Original-commit: flang-compiler/f18@877846f63c4ca3d306491859af332f96b1e46109
Reviewed-on: https://github.com/flang-compiler/f18/pull/384

[flang] Address review comments.

Change AnalyzeArraySpec and AnalyzeCoarraySpec to return resulting
ArraySpec by value.

Original-commit: flang-compiler/f18@0ae38143e530f867a7aa4392bfa09345c28ad7e3
Reviewed-on: https://github.com/flang-compiler/f18/pull/384

[flang] Support coarrays in name resolution

A coarray is represented as a `Symbol` with `ObjectEntityDetails` that
has a non-empty coshape. The coshape is represented using the same type
(`ArrayShape`) as the shape is, so the fact that it is a coshape is
determined from context.

Move code for analyzing shapes to `resolve-names-utils.cc` and
generalize it for coshapes.

In `symbol.cc` add dumping of coshapes. Simplify some of the functions
by adding some `Dump*` functions to handle common cases.

In `mod-file.cc` generalize the code for writing shapes to also write
coshapes. Fix a bug in `PutShapeSpec()`.

Original-commit: flang-compiler/f18@9d2482c40c78cad55701a9cbc52a2294cae94d44
Reviewed-on: https://github.com/flang-compiler/f18/pull/384
Tree-same-pre-rewrite: false

[flang] Fix document based on input from Kiran and Tim, mostly about Flang.

Update OptionComparison.md based on feedback from Kiran.

Original-commit: flang-compiler/f18@f28eb106fdf7bbb5a5ea2481ffc438752e6251e9

[flang] Update OptionComparison.md

Original-commit: flang-compiler/f18@8beda1f14eab6293f6465c08e3a531d685c7ab62

[flang] Update OptionComparison.md

Original-commit: flang-compiler/f18@78e1fce92d162a964fc6f48a26367fef421b805b
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#380 from flang-compiler/tsk3

Pointer assignment bounds, section subscript, substring

Original-commit: flang-compiler/f18@1165a7c57fac13294e72666da51e5dcf8af9f252
Reviewed-on: https://github.com/flang-compiler/f18/pull/380

[flang] Pointer assignment bounds, section subscript, substring

Resolve bounds in pointer assignment.
Remove TODOs for section-subscript and substring range.
Add tests that verify they are done.

Original-commit: flang-compiler/f18@dc2dd85a9a2b08ca906fd53d11faa2886863d4c4
Reviewed-on: https://github.com/flang-compiler/f18/pull/380

[flang] Fix doc typo

Merge pull request flang-compiler/f18#382 from flang-compiler/jeanPerier-typo-fix

Original-commit: flang-compiler/f18@101145787fa936899f015a8c2036b13dc81857b8

[flang] Fix doc typo

Original-commit: flang-compiler/f18@c571a3faf39da3530bea6a5a910b7a4cc377d815

[flang] Merge pull request flang-compiler/f18#379 from flang-compiler/options

Options comparison document

Original-commit: flang-compiler/f18@05b0f1dd837bbf167e7a10a9e38e13f618dd800b
Reviewed-on: https://github.com/flang-compiler/f18/pull/379

[flang] Update OptionComparison.md

Original-commit: flang-compiler/f18@27c77d164f415ebf928763270403c2d19aac55ad
Reviewed-on: https://github.com/flang-compiler/f18/pull/379

[flang] Update OptionComparison.md

Original-commit: flang-compiler/f18@9926fc91458bfcd55795a7e0768aaaf8a5651994
Reviewed-on: https://github.com/flang-compiler/f18/pull/379
Tree-same-pre-rewrite: false

[flang] Fixed an encoding error

Original-commit: flang-compiler/f18@0f9eff1bb00532bfc647a5370ba1207485915a63
Reviewed-on: https://github.com/flang-compiler/f18/pull/379
Tree-same-pre-rewrite: false

[flang] Description of command line options for Fortran compilers.

Original-commit: flang-compiler/f18@f170466bb99892d5c0bd09fcf624b0ecacbdfb83
Reviewed-on: https://github.com/flang-compiler/f18/pull/379
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#375 from flang-compiler/if-stmt-2

Remove unused variable in check-if-stmt.cc

Original-commit: flang-compiler/f18@274d66bcb048a49fd23fb587349f9603dd0907e3
Reviewed-on: https://github.com/flang-compiler/f18/pull/375

[flang] Remove unused variable in check-if-stmt.cc

Original-commit: flang-compiler/f18@520751311d5791341112ffa3a9b7e0fba90440b3
Reviewed-on: https://github.com/flang-compiler/f18/pull/375

[flang] Merge pull request flang-compiler/f18#378 from flang-compiler/pmk-fix376

Fix bugs flang-compiler/f18#376, flang-compiler/f18#377

Original-commit: flang-compiler/f18@89ef8f927070408b71fc0c8c6558043ce510870b
Reviewed-on: https://github.com/flang-compiler/f18/pull/378

[flang] Address comments, clean up warnings

Original-commit: flang-compiler/f18@a5eeeb4430825020e14141c0d51d1bb7160546e5
Reviewed-on: https://github.com/flang-compiler/f18/pull/378

[flang] Also fix bug#377

Original-commit: flang-compiler/f18@56631cf5e10a5f7f2909d8b83ede72b21d986348
Reviewed-on: https://github.com/flang-compiler/f18/pull/378
Tree-same-pre-rewrite: false

[flang] Clean up and prep for review

Original-commit: flang-compiler/f18@3f96c673e06b630050f8082d9ba019a0ba4ed21b
Reviewed-on: https://github.com/flang-compiler/f18/pull/378
Tree-same-pre-rewrite: false

[flang] Fix bug flang-compiler/f18#376, internal error when correcting misparse of structure constructor

Original-commit: flang-compiler/f18@f18a94ef9690c412907c733ac08be6736ea4eaad
Reviewed-on: https://github.com/flang-compiler/f18/pull/378
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#368 from flang-compiler/tsk4b

Rework .mod file writing for subprogram interfaces

Original-commit: flang-compiler/f18@807824cb512f73d0bbcd8c94985c99185735fa72
Reviewed-on: https://github.com/flang-compiler/f18/pull/368

[flang] Fix test

A sequence type must have a component.

Original-commit: flang-compiler/f18@937b3eaf068651a8fb07e45348ef119b0e420b70
Reviewed-on: https://github.com/flang-compiler/f18/pull/368

[flang] Rework .mod file writing for subprogram interfaces

A subprogram interface in a `.mod` file requires all of the symbols
needed to declare the function return value and dummy arguments.
Some of those were missing.

`SubprogramSymbolCollector` recursively discovers all such symbols,
including symbols used in type parameters, array bounds, character
lengths, parent types.

Common blocks require special handling: If any of the symbols that
are need appear in a common block, we have to include that common block
and all other symbols in it. To make that easier to figure out, add the
`commonBlock` property to `ObjectEntityDetails` to map the entity to
the common block it is in, if any.

Original-commit: flang-compiler/f18@08709f8e88c3b37bdf8461f34340dc345dfbb085
Reviewed-on: https://github.com/flang-compiler/f18/pull/368
Tree-same-pre-rewrite: false

[flang] Resolve LHS in pointer assignment

Original-commit: flang-compiler/f18@9a3525275cb8b25c6be80635a40d182b73042ea4
Reviewed-on: https://github.com/flang-compiler/f18/pull/368
Tree-same-pre-rewrite: false

[flang] Dump function return attributes

Also, change SubprogramDetails::result_ from `std::optional<Symbol *>`
to `Symbol *`. We don't need two levels of optional-ness.

Original-commit: flang-compiler/f18@db3b874946dc9b139009d7e10832edb2a076a7bc
Reviewed-on: https://github.com/flang-compiler/f18/pull/368
Tree-same-pre-rewrite: false

[flang] Don't add inherited procedures to generic binding

In this example:
```
  type t1
  contains
    procedure, nopass :: s1
    generic :: foo => s1
  end type
  type, extends(t1) :: t2
  contains
    procedure, nopass :: s2
    generic :: foo => s2
  end type
```

The GenericBindingDetails for foo in t2 include both s1 and s2 as
specific procs. There is no way to distinguish between the binding in
the current type and the binding that was inherited. In particular,
the .mod file will have a binding for s1 in t2, so it won't match the
original source (for exampke, see the old version of modfile14.f90).

Original-commit: flang-compiler/f18@4e2c6be5cbdc5d31c41f0e44b85985b4fb69210d
Reviewed-on: https://github.com/flang-compiler/f18/pull/368
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#370 from flang-compiler/pmk-fix363

Fix flang-compiler/f18#363: Adjust member function names in integer.h to avoid confusion.

Original-commit: flang-compiler/f18@bdd750f742eafde96054e438731137e80673d5aa
Reviewed-on: https://github.com/flang-compiler/f18/pull/370

[flang] Adjust member function names in integer.h to avoid confusion.

Original-commit: flang-compiler/f18@56dba8fa0897294b1a6f59348938312c0dff3e7b
Reviewed-on: https://github.com/flang-compiler/f18/pull/370

[flang] Merge pull request flang-compiler/f18#373 from flang-compiler/pmk-source

Fix flang-compiler/f18#358: Define and use UnlabeledStatement<> for if & forall

Original-commit: flang-compiler/f18@7c76ba5158cdbbe4461d15ecffbf754e7172667c
Reviewed-on: https://github.com/flang-compiler/f18/pull/373

[flang] some debugging after more testing

Original-commit: flang-compiler/f18@005b841dd1140a809fb8123ed5b02048b8e1a4d3
Reviewed-on: https://github.com/flang-compiler/f18/pull/373

[flang] Use source location in IF statement checks.

Original-commit: flang-compiler/f18@9e08746e2b4487bddf2e4b3580cdea4568fa5d53
Reviewed-on: https://github.com/flang-compiler/f18/pull/373
Tree-same-pre-rewrite: false

[flang] Fix typo

Original-commit: flang-compiler/f18@c5b05009df4562f79fc0e219c73ec6123b9982c1
Reviewed-on: https://github.com/flang-compiler/f18/pull/373
Tree-same-pre-rewrite: false

[flang] Fix typo

Original-commit: flang-compiler/f18@6be309300e329487f39c546e6d07ae7dc82d1ac0
Reviewed-on: https://github.com/flang-compiler/f18/pull/373
Tree-same-pre-rewrite: false

[flang] Define and use UnlabeledStatement<> for if & forall

Original-commit: flang-compiler/f18@028e6aba6cd0ca40533401fcd4bab38e94f1f43a
Reviewed-on: https://github.com/flang-compiler/f18/pull/373
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#372 from flang-compiler/tsk3

Name resolution bug fixes

Original-commit: flang-compiler/f18@74c994e9a5b90daedff591891d60ba83601505db
Reviewed-on: https://github.com/flang-compiler/f18/pull/372

[flang] Name resolution bug fixes

Fix a but where a derived type was not use-associated correctly
due to missing call to `GetUltimate()`.

Fix a bug with access statement, generic interface, and derived
type all with the same name.

Remove some TODOs that have been done.

Original-commit: flang-compiler/f18@4ba2b64c6d291d04691891535da96f425dda2338
Reviewed-on: https://github.com/flang-compiler/f18/pull/372

[flang] Merge pull request flang-compiler/f18#371 from flang-compiler/pmk-parens

Fix flang-compiler/f18#350: insert parens into formatted expressions only when required

Original-commit: flang-compiler/f18@24fd62850cbb3e50aa8185bc61d2683e723810f8
Reviewed-on: https://github.com/flang-compiler/f18/pull/371

[flang] Revert to AsFortran in module file output.

Original-commit: flang-compiler/f18@3dc7f685d177788f8f13d97d7e03aa00720f4730
Reviewed-on: https://github.com/flang-compiler/f18/pull/371

[flang] Use operator<< in test.

Original-commit: flang-compiler/f18@e3f321e9f0a1995b82b33de2911ca8a1754b8e91
Reviewed-on: https://github.com/flang-compiler/f18/pull/371
Tree-same-pre-rewrite: false

[flang] Logical operation precedence

Original-commit: flang-compiler/f18@060bc39fb4f42a9ac82b05a0603d62a2bdc3cb30
Reviewed-on: https://github.com/flang-compiler/f18/pull/371
Tree-same-pre-rewrite: false

[flang] Pass tests

Original-commit: flang-compiler/f18@ffb057f262c63e877f5bebc9604f795804bc1042
Reviewed-on: https://github.com/flang-compiler/f18/pull/371
Tree-same-pre-rewrite: false

[flang] work in progress

Original-commit: flang-compiler/f18@33ea8e506a114350d4c587ed14c6f5dacbd5379a
Reviewed-on: https://github.com/flang-compiler/f18/pull/371
Tree-same-pre-rewrite: false

[flang] Move some AsFortran() implementations into new formatting.cc; use precedence for parentheses

Original-commit: flang-compiler/f18@2b5fa051df3c8e183349388181e66e085385396e
Reviewed-on: https://github.com/flang-compiler/f18/pull/371
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#352 from flang-compiler/pmk-parsing

Fix some parsing issues found by Steve

Original-commit: flang-compiler/f18@683766f7f512f5ea5d9b4c15ea71c6d82aada93c
Reviewed-on: https://github.com/flang-compiler/f18/pull/352

[flang] Add extension edit descriptors to the unparser.

Original-commit: flang-compiler/f18@74e09e249a0e99059cd4d0fd89deadd2bc82b5a0
Reviewed-on: https://github.com/flang-compiler/f18/pull/352

[flang] Support CONVERT= and DISPOSE= on INQUIRE

Original-commit: flang-compiler/f18@fbedd32376eb71d289177cfe127d1d4835a51a61
Reviewed-on: https://github.com/flang-compiler/f18/pull/352
Tree-same-pre-rewrite: false

[flang] Check int literals for overflow when kind is known.

improve test

Original-commit: flang-compiler/f18@09ce783cd30e6d70829d0b5596fe8f3e0f88c64f
Reviewed-on: https://github.com/flang-compiler/f18/pull/352
Tree-same-pre-rewrite: false

[flang] Allow dollar and backslash formats

Original-commit: flang-compiler/f18@4d8d6e599eab130a9026c53f404a7036d4410c47
Reviewed-on: https://github.com/flang-compiler/f18/pull/352
Tree-same-pre-rewrite: false

[flang] Allow multiple associations on legacy POINTER declaration

fix that fix

Original-commit: flang-compiler/f18@f096b73842cc0d443517a1075b3a31dd9ed8fdca
Reviewed-on: https://github.com/flang-compiler/f18/pull/352
Tree-same-pre-rewrite: false

[flang] Update documentation to reflect current intrinsic procedure support in f18

Merge pull request flang-compiler/f18#366 from flang-compiler/jpr0

Original-commit: flang-compiler/f18@0f310c8a8cf48ea61990ffa3ebcf2e15b8e7e73d

[flang] Address review comment

Original-commit: flang-compiler/f18@1e3b3b457d5128b6a2419c6fac8e8e4f8a8bfb28

[flang] Update documentation with status of intrinsic procedure support in f18

Original-commit: flang-compiler/f18@aa12037a5b923cbcafd04430a8436900077c6f78
Tree-same-pre-rewrite: false

[flang] Remove useless dummy return statements

I first added these because I had issues with return type deduction
in lambdas, but they are actually useless when the return type is
specified in the lambda signature.

Original-commit: flang-compiler/f18@5bcbbd8bdcef2e5c34edbfa755572e74514551fe
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#365 from flang-compiler/do2

Fix semantics test for "DO".

Original-commit: flang-compiler/f18@62794b980ec1ba1c681a84d8533fe9df5a9ea68b
Reviewed-on: https://github.com/flang-compiler/f18/pull/365

[flang] This test fails when the directory in which test tests are run contains a path that matches the pattern "do *[1-9]".  In my case, I had a directory called "do1".  The "*" is not necessary in the pattern.  Now the test passes unless the directory contains a " ".

Original-commit: flang-compiler/f18@462f15e4e7c1e6a2c266700e4548f67ba9b32ca9
Reviewed-on: https://github.com/flang-compiler/f18/pull/365

[flang] Fix F18 scalar integer power algorithm

Merge pull request flang-compiler/f18#362 from flang-compiler/jpr1

Original-commit: flang-compiler/f18@9f3f42fbadabfd7841478ce872fa232be601b2d2

[flang] Fix F18 scalar integer power algorithm

Original-commit: flang-compiler/f18@f0609e7ace60d6272285eda9d57e4052632b0e3c

[flang] Fix compilation issues of PR flang-compiler/f18#292

Merge pull request flang-compiler/f18#361 from flang-compiler/jpr0

Original-commit: flang-compiler/f18@37252adf0ec6f9968c2ff8e1f720459d89f55b6a

[flang] Add todo for bessel function default support

Original-commit: flang-compiler/f18@3842e7f5acda4bb35cf6ac235250f1ba4adee504

[flang] Fix compilation failure on PowerPC

Original-commit: flang-compiler/f18@f79f4973b62c378fea2de71eb002b235c53a7c28
Tree-same-pre-rewrite: false

[flang] Remove non standard use of bessel C functions

Original-commit: flang-compiler/f18@a40559372a6c7476eb999ecdb2b9bee681ad4122
Tree-same-pre-rewrite: false

[flang] Silence GCC 8.1 spurious warning

Original-commit: flang-compiler/f18@69e05d0632cd9722767ce4c945a614a29917ec92
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#364 from flang-compiler/sjs-make-install

Add CMake rules to install static and shared libraries.

Original-commit: flang-compiler/f18@88c3b1fa128ad262b586619c2ed7cbdbdf8e3f2e
Reviewed-on: https://github.com/flang-compiler/f18/pull/364

[flang] Add CMake rules to install static and shared libraries in
the default install directory or in the directory specified
with CMAKE_INSTALL_PREFIX.  Fixes flang-compiler/f18#359.

Original-commit: flang-compiler/f18@35ce1628e24d85eb5fa8fe467af06f7a33a4d293
Reviewed-on: https://github.com/flang-compiler/f18/pull/364

[flang] Merge pull request flang-compiler/f18#357 from flang-compiler/tsk6

Track current statement location in SemanticsVisitor

Original-commit: flang-compiler/f18@69575f87f2253f178b28755889a29d43193f28c5
Reviewed-on: https://github.com/flang-compiler/f18/pull/357

[flang] Track current statement location in SemanticsVisitor

Change `SemanticsVisitor` to track the location of the current
statement, if any, so that it's available through
`SemanticsContext::location()`

Add overloading of `SemanticsContext::Say()` that reports the
message at the location of the current statement if a `CharBlock`
is not provided.

Original-commit: flang-compiler/f18@5185c721ee9e2da8adcc4cad5a74acc0bf5c8d2d
Reviewed-on: https://github.com/flang-compiler/f18/pull/357

[flang] Merge pull request flang-compiler/f18#360 from flang-compiler/computed-goto

Implement semantics for computed GOTO

Original-commit: flang-compiler/f18@624623a063eda832ea8c6a543bf82d443506c7b5
Reviewed-on: https://github.com/flang-compiler/f18/pull/360

[flang] Removed unused #include files from check-computed-goto.cc.
Did the same for a few other similar files.

Original-commit: flang-compiler/f18@6f7569b93887b32e0b18da42d655e6fde1686e31
Reviewed-on: https://github.com/flang-compiler/f18/pull/360

[flang] Fix typo: "check" becomes "checked"

Original-commit: flang-compiler/f18@2b2b0bf324db2745200b1b82e0a286942adb0c6a
Reviewed-on: https://github.com/flang-compiler/f18/pull/360
Tree-same-pre-rewrite: false

[flang] Implement semantics for computed GOTO.  Note that a PGI extension
will implicitly convert a float to integer (and issue a warning).
This commit does not implement that extension.

Original-commit: flang-compiler/f18@b85755f26fef767850572ef5d3deea87258d87a7
Reviewed-on: https://github.com/flang-compiler/f18/pull/360
Tree-same-pre-rewrite: false

[flang] Merge pull request flang-compiler/f18#354 from schweitzpgi/master

FIR: continued development work

Original-commit: flang-compiler/f18@60f4ef672eb1d2a7b7340df916d742d18d4454ae
Reviewed-on: https://github.com/flang-compiler/f18/pull/354

[flang] add comment per Steve's request in review

Original-commit: flang-compiler/f18@c3a5d6a15eca27c25ba1dcd50e3a478228e98eda
Reviewed-on: https://github.com/flang-compiler/f18/pull/354

[flang] Change per Jean's review comment

Original-commit: flang-compiler/f18@9a3a79927bbc2820706398dc2ac03f0eb1c79ad6
Reviewed-on: https://github.com/flang-compiler/f18/pull/354
Tree-same-pre-rewrite: false

[flang] remove use of undefined behavior

Original-commit: flang-compiler/f18@d7c5879f2c86ede4304f98a4e16af6c97b2a09b9
Reviewed-on: https://github.com/flang-compiler/f18/pull/354
Tree-same-pre-rewrite: false

[flang] temporary symbol creation and improve dump routine
check for labels on construct delimiting statements
ifdef out code to avoid warning

Original-commit: flang-compiler/f18@667674aaa08a90f65dd9f0023a157c337f749892
Reviewed-on: https://github.com/flang-compiler/f18/pull/354
Tree-same-pre-rewrite: false

[flang] remove the DO stub instructions

Original-commit: flang-compiler/f18@f1ddcd8d76cce67aa988da8eb356c8d8d93c79a8
Reviewed-on: https://github.com/flang-compiler/f18/pull/354
Tree-same-pre-rewrite: false

[flang] build up expressions implied by DO loop construct

Original-commit: flang-compiler/f18@1e7b9adb62666223662b5445f9303d82be432299
Reviewed-on: https://github.com/flang-compiler/f18/pull/354
Tree-same-pre-rewrite: false