Implement GT_NEG decomposition

Commit migrated from https://github.com/dotnet/coreclr/commit/cdb8a214a807ef0207b7e3cd9313cfaf163bf392

Merge pull request dotnet/coreclr#6216 from hqueue/fix/typo_20160710

Fix a misleading typo in comment

Commit migrated from https://github.com/dotnet/coreclr/commit/801c8370f3d54568a4a58422d243a7018aeab97f

Merge pull request dotnet/coreclr#6202 from BruceForstall/RefactorDecomp

Refactor RyuJIT/x86 long decomposition code

Commit migrated from https://github.com/dotnet/coreclr/commit/c99eaa4d0e3ff619e98b410af5fb619cebaa58b4

Fix a misleading typo in comment

Signed-off-by: Hyung-Kyu Choi <hk0110.choi@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/f5a6a10f8b5255346aec756f80ad9de76f3bb8c2

Avoid repeated virtual method calls in List.Contains (dotnet/coreclr#6212)

Commit migrated from https://github.com/dotnet/coreclr/commit/372b5934c14d88bf0ac510676c6fe59b331fb7d8

Refactor RyuJIT/x86 long decomposition code

All decomposition code is now in decompose.cpp, in a Decompose class.
Each node type that is decomposed has its own member function to do
the decomposition. Various helpers have been added to reduce code
duplication. In general, though, the code is as it was before.

Commit migrated from https://github.com/dotnet/coreclr/commit/0e5227d3924ea11f28c5f62dee681b780ee7ecaa

Merge pull request dotnet/coreclr#6201 from AndyAyersMS/LowerCallsiteWeight

Inliner: updates to ModelPolicy

Commit migrated from https://github.com/dotnet/coreclr/commit/de510bda5b744468117d126387fb81ac8f564502

Merge pull request dotnet/coreclr#6190 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/d4fc9b7744b6d2deee2a8bd4ffa7793cc53fc833

Inliner: updates to ModelPolicy

Updates to bring CS and TP impact of the ModelPolicy into more acceptable
ranges.

For CS, reduce the call site weights to values that are more in keeping
with the legacy policy weights. Local test runs show this does not
drastically alter CQ and brings CS down below LegacyPolicy levels, on
average.

Implement an early out rejection based solely on ILSize. The threshold
value is set by conservatively determining when ILSize alone indicates
the method in question will never be inlined (note the policy itself
does not have an explicit ILSize cutoff). See comments for
`ModelPolicy::NoteInt` for details. Note if we adjust the model's size
and profitability estimates, this threshould will also need updating.

CQ (as measured by the CoreCLR perf tests) continues to show about a
2.5% geomean improvement over LegacyPolicy.

Commit migrated from https://github.com/dotnet/coreclr/commit/ff2700a4b43ffd1fd82fc8a3bb1b24ffc638713a

Fix exceptions in GC (dotnet/coreclr#6192)

The GC code in general doesn't expect exceptions to be thrown from functions
it calls. However, the event creation functions were in fact throwing, so
in case of OOM, exception would be thrown from various places of the code.
This change creates non-throwing versions of the event creation functions
and replaces all usages of the throwing ones in the GC.
In addition, I've removed blocks with PAL_TRY that were under NO_CATCH_HANDLERS
define and also added Object::SetAppDomainNoThrow, which allowed me to removed
EX_TRY from GCHeap::StressHeap where the Object::SetAppDomain was called before.

Commit migrated from https://github.com/dotnet/coreclr/commit/57b3450f4d232cd53d3b9a0f6566806d73fa4156

Merge pull request dotnet/coreclr#6193 from BruceForstall/FixTypos

Fix some typos in comments

Commit migrated from https://github.com/dotnet/coreclr/commit/b7d37fe7317381a64aa6331d24e6a9f3d6aab6c5

Merge pull request dotnet/coreclr#6195 from rahku/crossgen

Fix SOS bpmd for windows

Commit migrated from https://github.com/dotnet/coreclr/commit/97ffb0abae1cb9a3bb23f4466d50ebd98600105a

Merge pull request dotnet/coreclr#6197 from wtgodbe/heapVerify

Add new scenario to code coverage job

Commit migrated from https://github.com/dotnet/coreclr/commit/bc97bcc9b9fabf84d7a3d79b39e1d91872e3b000

Add new scenario to code coverage job

Commit migrated from https://github.com/dotnet/coreclr/commit/0299f94e5742ec7bd4e1227f3667dc79126c1836

Merge pull request dotnet/coreclr#6176 from sivarv/lsraTodo

Optimize use of a reg-optional lclVar that is marked for both reload and spillAfter

Commit migrated from https://github.com/dotnet/coreclr/commit/fd9ab6556646fa8f02112e0cc219b792bad45433

Fix SOS bpmd for windows

Commit migrated from https://github.com/dotnet/coreclr/commit/ef6ad57a343f8796f7616926348de3baf0370957

Fix some typos in comments

Commit migrated from https://github.com/dotnet/coreclr/commit/a8896b3b90d14830b9205ea2ed0824cd0591213a

Fixing the build break/unsigned to signed warning.
This checkin onbehalf of Tijoytk

[tfs-changeset: 1616784]

Commit migrated from https://github.com/dotnet/coreclr/commit/587690d0b6354a5056f16be5318427b19214b6cb

Optimize use of a reg-optional lclVar that is marked for both reload
and spillAfter.

Commit migrated from https://github.com/dotnet/coreclr/commit/aaef75a21433d56543fcff88434b8be7892e1a95

Merge pull request dotnet/coreclr#6163 from josteink/resolve-python

Resolve Python2.7 when executable is not called 'python'.

Commit migrated from https://github.com/dotnet/coreclr/commit/1eb421cefab252f69dd7b54c03eed1c3011ee44c

Update contributor guidelines (dotnet/coreclr#6183)

Commit migrated from https://github.com/dotnet/coreclr/commit/64ab292948fff4244517fa632f758e1d06a10e52

Merge pull request dotnet/coreclr#6177 from BruceForstall/FixMultiregStructArgNyi

Fix RyuJIT/x86 fgMorphMultiregStructArg NYI

Commit migrated from https://github.com/dotnet/coreclr/commit/db5635455e3472044975052894915233af09303a

Resolve Python2.7 when executable is not called 'python'.

Commit migrated from https://github.com/dotnet/coreclr/commit/38c683c17a19bb7119d7334061f18257d9d6ccbb

Fix RyuJIT/x86 fgMorphMultiregStructArg NYI

The code leading to the fgMorphMultiregStructArg NYI shouldn't have been taken for x86.
In fgMorphArgs, I put the setting of `hasMultiregStructArgs = true` in one case under `#ifdef`.

Disable tests failing with a newly exposed assert, `'isPhiDefn || type != TYP_STRUCT'`,
tracked by dotnet/coreclr#6180.

I also fixed a number of asserts on strings that would never fail the way they were
written -- `assert("string")` instead of `assert(!"string")` -- and fixed some typos/grammar.

Commit migrated from https://github.com/dotnet/coreclr/commit/5cd421355052cbd96dc841aa845f95858909e014

Merge pull request dotnet/coreclr#6081 from adityamandaleeka/virtual_temp

Clean up unused code related to memory mapping

Commit migrated from https://github.com/dotnet/coreclr/commit/6f26329518b08055c090315eee5db533e42f39ae

Merge pull request dotnet/coreclr#6021 from CarolEidt/LessConservativeGtObj

Less conservative gt obj

Commit migrated from https://github.com/dotnet/coreclr/commit/aab8856ce0365ede77bb8ca8c208538a72185a54

Merge pull request dotnet/coreclr#6175 from tijoytom/master

MarshalAs(UnManaged.ByValArray) overflow.[Resubmitting the PR]

Commit migrated from https://github.com/dotnet/coreclr/commit/fd1a7b4bd11fdc7f2f6621976f74233ba1a74556

Merge pull request dotnet/coreclr#6150 from sivarv/lsraRefactor

Outstanding code review feedback from reg-optional PR dotnet/coreclr#6092

Commit migrated from https://github.com/dotnet/coreclr/commit/1e3545729c1ca318d5f3001be3cdf77e567359ae

Merge pull request dotnet/coreclr#6170 from wtgodbe/signarm

Revert sign.builds so that arm64 bins can be signed

Commit migrated from https://github.com/dotnet/coreclr/commit/59680a5204c468a54882f8c9eef7cd674b1fdadd

Merge pull request dotnet/coreclr#6173 from kyulee1/gc03

ARM64: Enable Daily Job for GcStress0x3

Commit migrated from https://github.com/dotnet/coreclr/commit/105d08676202058b3b3f7392a45cee3937882211

MarshalAs(UnManaged.ByValArray) overflow.
For non-blittable embedded array in structs we ignored the SizeConst and wrote past the
buffer when number of elementsin the arrayis greater than SizeConst.Fix is to truncate
the array at SizeConst
MarshalAs(UnManaged.ByValTStr)
Very subtle case when the SizeConst == Number of bytes required to marshal , we
write the null one past the buffer.This happens only on  machine with non-english
(multi-byte) locale as default. Fix is to check the number of bytes required and
truncate the correctly leaving space for the terminating null.

Commit migrated from https://github.com/dotnet/coreclr/commit/8d51b631b3f582a093a108acfa28c2390fe85f41

ARM64: Enable Daily Job for GcStress0x3

Commit migrated from https://github.com/dotnet/coreclr/commit/81003fbf84cd8882a63e29a15d381ecab375fbc0

Merge pull request dotnet/coreclr#6090 from kyulee1/gctest3

ARM64: Test Update for GcStress0x3

Commit migrated from https://github.com/dotnet/coreclr/commit/b567823b332c347ebfc7bf5726df16dc6c38690a

Avoid box allocation in Encoding.EncodingName (dotnet/coreclr#6142)

`Encoding.EncodingName` concatenates a `string` with an `int` via
`string.Concat(object, object)`, which results in the `int` being
boxed.

This change avoids the box by calling `int.ToString()`,
allowing `string.Concat(string, string)` to be used.

Commit migrated from https://github.com/dotnet/coreclr/commit/a73353e66181706bc98a65b92a921d476bfd322d

Revert sign.builds so that arm64 bins can be signed

Commit migrated from https://github.com/dotnet/coreclr/commit/00d943c1e3bee5d467d410b5941eb1751d3e2162

Code review feedback.

Commit migrated from https://github.com/dotnet/coreclr/commit/cc23275388ec304aeca054b9a255c87a502c2bcd

Merge pull request dotnet/coreclr#6114 from jamesqo/encodingforwarder

Consolidate much of the duplicated code across Encoding implementations

Commit migrated from https://github.com/dotnet/coreclr/commit/00eca9ab295420873a551d3a9e0acde0da20338a

Merge pull request dotnet/coreclr#6152 from mikedn/x86-addsub-lo

[WIP] Introduce GT_ADD_LO and GT_SUB_LO

Commit migrated from https://github.com/dotnet/coreclr/commit/840a6ca79d4643cd0cfed9444e5658933d901618

ARM64: Test Update for GcStress0x3

Commit migrated from https://github.com/dotnet/coreclr/commit/81fc669a8c302a5628811682173c2ae379bfe7df

Merge pull request dotnet/coreclr#6161 from dotnet-bot/UpdateDependencies20160707062011

Updating External dependencies to beta-24307-00

Commit migrated from https://github.com/dotnet/coreclr/commit/49f97a102c9859258832688e4cea1963aa56b011

Avoid heap allocating in char.ConvertFromUtf32 (dotnet/coreclr#6141)

Commit migrated from https://github.com/dotnet/coreclr/commit/ebbff97a9712ae1e625a9a7c26586f8f21070b5c

Updating External dependencies to beta-24307-00

Commit migrated from https://github.com/dotnet/coreclr/commit/a2ef8a06d6566ae39f30bd45fe2df79a6fd8310b

Convert SymbolType.m_format to be a string (dotnet/coreclr#6133)

Commit migrated from https://github.com/dotnet/coreclr/commit/de7eaa720b309f3cea66e2e276392a60e363c2cc

Avoid box allocation in DateTimeFormat.FormatCustomized (dotnet/coreclr#6147)

The current implementation calls `string.Concat(object, object)`, which
results in an `int` box allocation.

Avoid the box allocation by calling `int.ToString()`, allowing
`string.Concat(string, string)` to be used.

Commit migrated from https://github.com/dotnet/coreclr/commit/62482f58b025eebd05101e33f2d2253fee070ab5

Avoid box allocation in TypeBuilder.DefineDataHelper (dotnet/coreclr#6148)

The current implementation calls `string.Concat(object, object)`, which
results in a box allocation.

Avoid the box allocation by calling `int.ToString()`, allowing
`string.Concat(string, string)` to be used.

Commit migrated from https://github.com/dotnet/coreclr/commit/953d38321f817dffe18261ce77d508947ed4b4fb

Avoid box allocation in ActivityTracker (dotnet/coreclr#6149)

The current implementation calls
`string.Concat(object, object, object)`, which results in a box
allocation.

Avoid the box allocation by calling `long.ToString()`, allowing
`string.Concat(string, string, string)` to be used.

Commit migrated from https://github.com/dotnet/coreclr/commit/e6ca607e9dfa0718270aec74b9c9ff6ae3296f3c

make all public properties of DebuggableAttribute visible outside mscorlib (dotnet/coreclr#6153)

Commit migrated from https://github.com/dotnet/coreclr/commit/245ea79a84481d3d2b66c860b3d74e3251586cfb

Merge pull request dotnet/coreclr#6157 from rahku/crossgen

Do not clean tests folder when skiptests option is used along with clean

Commit migrated from https://github.com/dotnet/coreclr/commit/103598b7a612f0225170fea7d6b4430c87b843e4

Merge pull request dotnet/coreclr#6151 from mikedn/runbench-coreclr

Fix incorrect RunBenchmarks help text

Commit migrated from https://github.com/dotnet/coreclr/commit/c29547fc1559c9d90735efab1253c8cbf259319b

Do not clean tests folder when skiptests option is used along with clean

Commit migrated from https://github.com/dotnet/coreclr/commit/14ae2d54a4d37303d4a3a4d52c300596559ef41a

Merge pull request dotnet/coreclr#6130 from rahku/crossgen

ARM64: Fix incremental build problem for cross-components

Commit migrated from https://github.com/dotnet/coreclr/commit/5a95caf62c33b61e1c4deab47101d92a386bab2a

Fix incremental build problem for cross-components

Commit migrated from https://github.com/dotnet/coreclr/commit/74870facf4fa0f70a0c2ba5ff7ec2bd349faeb32

Merge pull request dotnet/coreclr#6139 from mkborg/fix_lldb_search_order

Fix LLDB search order

Commit migrated from https://github.com/dotnet/coreclr/commit/85574fc06c334c1cdcaddfa2167988ccea818709

Merge pull request dotnet/coreclr#6146 from ellismg/fix-sign-targets-syntax-error

Fix syntax error in sign.builds

Commit migrated from https://github.com/dotnet/coreclr/commit/585f3e1672ebf8f5486b200ab998a3cc229df75c

Fix incorrect RunBenchmarks help text

RunBenchmark's help text claims that there's a -coreclr option when in fact the option is -runner.

Commit migrated from https://github.com/dotnet/coreclr/commit/17aebd846b202d4b19f1adfad79eefdaf57bd244

Introduce GT_ADD_LO and GT_SUB_LO

Commit migrated from https://github.com/dotnet/coreclr/commit/77f1603b268452bc49ccd69ae8930e5e5357ca39

Fix syntax error in sign.builds

Commit migrated from https://github.com/dotnet/coreclr/commit/ce4950e101a96a7f39f14aaf49ef8f8d87c79b3b

Merge pull request dotnet/coreclr#6015 from kouvel/NamedMutexMoreFlockCases

Named mutex: Use flock instead of pthread process-shared mutex in som…

Commit migrated from https://github.com/dotnet/coreclr/commit/66b6219f6e1c0e0162d52e1c098554e73777a52d

Merge pull request dotnet/coreclr#6135 from dotnet-bot/UpdateDependencies20160706051943

Updating External dependencies to beta-24306-00

Commit migrated from https://github.com/dotnet/coreclr/commit/b799cf9626020a0b67676e34cc9e6aeac798a87e

Fix LLDB search order

By default 'find_library' without 'NO_DEFAULT_PATH' keyword searches
first in default locations specified by '${CMAKE_SYSTEM_PREFIX_PATH}'
and only then in locations specified via 'PATHS' keyword
('${WITH_LLDB_LIBS}' in our case). As result it always picks-up default
LLDB ignoring the one explicitly specified via '${WITH_LLDB_LIBS}'.
This change modifies search order giving priority to '${WITH_LLDB_LIBS}'
and '${WITH_LLDB_INCLUDES}' over default locations.

Commit migrated from https://github.com/dotnet/coreclr/commit/c1b65bdc225386e4f2af4c49512fbb93579c0973

Updating External dependencies to beta-24306-00

Commit migrated from https://github.com/dotnet/coreclr/commit/fd3d4a336e51e75058239d35447d18d3591ac92c

Named mutex: Use flock instead of pthread process-shared mutex in some more cases

Workaround for dotnet/coreclr#5456:
- Sometimes, a timed wait operation is not getting released, causing a hang
- Due to the hang, it is not possible to detect this issue with code
- Temporarily disabled the use of pthread process-shared mutexes on ARM/ARM64. File locks will be used instead.

Workaround for dotnet/coreclr#5872:
- On Alpine Linux, a pthread process-shared robust mutex is detecting the case where a process abandons the mutex when it exits while holding the lock, but is putting the mutex into an unrecoverable state (ENOTRECOVERABLE) instead of assigning lock ownership to the next thread that is released from a wait for a lock and notifying of abandonment (EOWNERDEAD).
- Added a test case to detect this issue, to have it use file locks instead

Close dotnet/coreclr#5456

Commit migrated from https://github.com/dotnet/coreclr/commit/f63816767aee67509ac3c61e94ff95d371471493

Merge pull request dotnet/coreclr#6098 from CarolEidt/BlkNodeRefactors

More Blk Op Refactoring

Commit migrated from https://github.com/dotnet/coreclr/commit/9990ac928903d556c635a8d4162a4907c4e41eb1

Merge pull request dotnet/coreclr#6102 from briansull/inliner-dump

Improve the dump for inline return expressions

Commit migrated from https://github.com/dotnet/coreclr/commit/63d50adfee9fb3cf31ca09ac2c9c33e11ef4b076

Merge pull request dotnet/coreclr#6101 from BruceForstall/RyuJITx86EH

RyuJIT/x86: add support for EH

Commit migrated from https://github.com/dotnet/coreclr/commit/5e4d41cfb115f6c4b662a5df46eba759b56dae20

Merge pull request dotnet/coreclr#6094 from mikedn/x86-uncontained-long

Allow uncontained GT_LONG nodes

Commit migrated from https://github.com/dotnet/coreclr/commit/ec8157edd52146b108b02d821d88d295048d5212

Merge pull request dotnet/coreclr#6124 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/e18245844cc8400400fc05c01ecf311cb9bdf019

Merge pull request dotnet/coreclr#6100 from BruceForstall/BotrX86EHUpdate

Add information on x86 EH to CLR ABI

Commit migrated from https://github.com/dotnet/coreclr/commit/b94ccd123439f86bf6a29b9f9c905b42ca737cb1

Merge pull request dotnet/coreclr#6093 from rahku/arm64retbuf

Revert Pinvoke ILStub calli signature for desktop clr

Commit migrated from https://github.com/dotnet/coreclr/commit/7782e7db223d2a90792546d715f88648c600c5a3

only use config on coreclr

[tfs-changeset: 1616092]

Commit migrated from https://github.com/dotnet/coreclr/commit/0881ab88c6b219aa2325543f3b180337cba3fd3c

Remove TODO on throwing exception

Commit migrated from https://github.com/dotnet/coreclr/commit/467f06d6f01deb4905a901a9d337a8dfdef817e1

Merge pull request dotnet/coreclr#6106 from mikedn/modopt-feedback

Address div/mod CR feedback

Commit migrated from https://github.com/dotnet/coreclr/commit/59c6500f2f10b6e3f55b43e549ddc0293d9ee4fc

More Blk Op Refactoring

Code refactoring in preparation for 1st Class Structs:
Factor out the legacy code generation for CpObj.
Abstract some functionality to member methods.
Move some block-related method definitions.
Make fgOrderBlockOps legacy-only (it is unused in RyuJIT).
Factor out the code to create a block init value.
Add a new IsLocalExpr() method.
Change some variable names to distinguish between objects and their addresses.

Commit migrated from https://github.com/dotnet/coreclr/commit/12ea758226379d60a6b7fe3c36c1ae687c13012b

Move the SecuritySafeCritical attributes to EncodingForwarder

Commit migrated from https://github.com/dotnet/coreclr/commit/a64020c8825770ccc8a83d200783a979fbac6434

Merge pull request dotnet/coreclr#6120 from dotnet-bot/UpdateDependencies20160705051942

Updating External dependencies to beta-24305-00

Commit migrated from https://github.com/dotnet/coreclr/commit/5e0cb3af80d85290c5db416d8886c83d7b5d7621

Better performance for MulticastDelegate.Equals (dotnet/coreclr#6113)

Better performance for MulticastDelegate.Equals

Commit migrated from https://github.com/dotnet/coreclr/commit/a8cdb489463200598631c5acacc5aa521e10b139

One of the flags MAP_SHARED or MAP_PRIVATE has to be specified. MAP_PRIVATE seems to fit here. (dotnet/coreclr#6089)

Commit migrated from https://github.com/dotnet/coreclr/commit/ad40ed696dbc696733e09422d57622ed574ecec8

Updating External dependencies to beta-24305-00

Commit migrated from https://github.com/dotnet/coreclr/commit/0f68aa835593de8a788092b37d6a481d676f3934

Add note on UTF8Encoding.GetByteCount to EncodingForwarder

Commit migrated from https://github.com/dotnet/coreclr/commit/a4192dc80352345be2c250b4c33b5b72680069d6

Fix CoreFX test failures

Commit migrated from https://github.com/dotnet/coreclr/commit/4fd1bfef80fbd4ccb7625196cd841f4fa6415282

[UTF8Encoding] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/1f9cd6744fcc4c14ee402ba24e26a1b9e4ce8fcc

[UTF7Encoding] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/e1818e622933da083a241963e69f36d5d6d89063

[UTF32Encoding] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/ad1ad35dc03aad4822db57bcbbe1ce7b9f4958ce

[UnicodeEncoding] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/f09b521e334fcdf6c279466724a2e6b8f4642cce

[EncodingNLS] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/95ff597b07cf40532f6af52beab076bd80332b0f

[ASCIIEncoding] Remove unncessary comments

Commit migrated from https://github.com/dotnet/coreclr/commit/77fa0fb69c9113909fbbe3f896779eab26d9e250

Use EncodingForwarder for GetString(byte[], int, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/372fcd3cfc8115233040a787e36d020edd919a22

Use EncodingForwarder for GetChars(byte*, int, char*, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/ab47c2281299f464ecddb1d04c292a37b96646dc

Use EncodingForwarder for GetChars(byte[], int, int, char[], int)

Commit migrated from https://github.com/dotnet/coreclr/commit/860434db541daf533b43491280774dc4274590b8

Use EncodingForwarder for GetCharCount(byte*, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/f83ecbead207000825555393287dafbca8259137

Use EncodingForwarder for GetCharCount(byte[], int, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/6de8ede4e8ca98a382b066ba45a172e3f8ce2821

Use EncodingForwarder for GetBytes(char*, int, byte*, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/7c771b8b8462d0b95130cabfe0de5efbf64278bc

Use EncodingForwarder for GetBytes(char[], int, int, byte[], int)

Commit migrated from https://github.com/dotnet/coreclr/commit/088943185a0469d936a8c0b6e235bdc715e6fc25

Use EncodingForwarder for GetBytes(string, int, int, byte[], int)

Commit migrated from https://github.com/dotnet/coreclr/commit/fa55fd74ae3e9374468d32db7371c82e6ae13593

Use EncodingForwarder for GetByteCount(char*, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/56c687e0afefc6c223dc0d296a4c64ab5465ebdd

Rename the chars parameter in a comment

Commit migrated from https://github.com/dotnet/coreclr/commit/9668b5f6275f9dbf24ecd0767d5d4817cde16322

Use EncodingForwarder for GetByteCount(string)

Commit migrated from https://github.com/dotnet/coreclr/commit/e61479088e1ba1f1d8756b8da1a352d518c015c8

Use EncodingForwarder for GetByteCount(char[], int, int)

Commit migrated from https://github.com/dotnet/coreclr/commit/ebfc3ce64205a2a5b14c9fe487659ed02c1f3486

Merge pull request dotnet/coreclr#6109 from dotnet-bot/UpdateDependencies20160704051959

Updating External dependencies to beta-24304-00

Commit migrated from https://github.com/dotnet/coreclr/commit/c92870088bbb38c843751bb571198430a0e555ec

Short-circuit on the count, not the array length, in common Encoding methods (dotnet/coreclr#6108)

* Short-circuit using count instead of array.Length
* Use Array.Empty in default Reset implementation

Commit migrated from https://github.com/dotnet/coreclr/commit/a1e785dccf35af4305f2536b1e25cb719e8f1943