Add regression test

Commit migrated from https://github.com/dotnet/coreclr/commit/58c043d6907f1720b4b2bc2cfd2fe34fd15059b7

Fix statement insertion point in GT_STORE_LCL_VAR decomposition

In some cases a newly created statement is inserted between the current statement and its embedded statements instead of being inserted after the current statement and its embedded statements.

Commit migrated from https://github.com/dotnet/coreclr/commit/b193390eca99368683835efdecb1f382b1443af3

Generic dictionary minor performance improvement and simplification for R2R (dotnet/coreclr#5690)

A set of refactoring changes to slighly improve the performance of generic dictionary access on R2R images, and simplifying the codebase:
    1) Removing dependency on CEEInfo::ComputeRuntimeLookupForSharedGenericTokenStatic (and deleting the API).
    2) Stop parsing the generic type/method signatures when generating the R2R dictionary lookup assembly stub.
    3) Avoid re-encoding the generic type/method signatures in a new in-memory blob using a SigBuilder  (signatures used directly from the R2R image)
    4) Moved the parsing/loading of type/method signatures to Dictionary::PopulateEntry()
    5) Dictionary index and slot number are now encoded in the generated assembly stub instead of the signature (stub takes a pointer to a data blob, which contains the signature, the dictionary index and slot, and the module pointer)

Commit migrated from https://github.com/dotnet/coreclr/commit/b9f5ae88cc49836c8d31f07db7800707165cdb06

Merge pull request dotnet/coreclr#5895 from briansull/UnboxingStub-Fix

Fix for generic unboxing stub with x8 return buffer argument

Commit migrated from https://github.com/dotnet/coreclr/commit/fb79613c44df5ad80831dba1460ffb14dd6497a3

Merge pull request dotnet/coreclr#5813 from mikedn/no-setflags

Remove useless gtSetFlags calls

Commit migrated from https://github.com/dotnet/coreclr/commit/0d462da2173627b454dbe74f33828e0698cd963b

Merge pull request dotnet/coreclr#5885 from brianrob/docker_perf

Update Linux Tracing Instructions for Docker Containers

Commit migrated from https://github.com/dotnet/coreclr/commit/51f010f8f219810282391a9e0dd08188bafd5a93

Merge pull request dotnet/coreclr#5887 from gkhanna79/Fix5883

Update Prerelease version to Beta and increment patch version.

Commit migrated from https://github.com/dotnet/coreclr/commit/a576c83b0401fcfcc9e47e5cd3dcbe4c13871f58

Fix for generic unboxing stub with x8 return buffer argument

When we have nonstandard args we have to handle them before
we setup to expect the return buffer arg.

Added additional JitDump information about the call and its return type in impImportCall.

All of the ARM64 EXPECTED_PASS tests will now pass when hasFixedRerBufReg is enabled.
Additional changes are needed for the IL_STUB_PInvoke to get the Interop tests to pass
But these tests are currentlt alreay in the EXPECTED_FAIL catagory.

Commit migrated from https://github.com/dotnet/coreclr/commit/3ddcd852cd36b350bcbb97ff0b6667e318e41e58

Update Prerelease version to Beta and increment patch version.

Commit migrated from https://github.com/dotnet/coreclr/commit/af7598e06f0df2a2df4894bbdfb5eb36b9dabb0d

Merge pull request dotnet/coreclr#5893 from rahku/test

Enable building only native test components

Commit migrated from https://github.com/dotnet/coreclr/commit/cb0bb4e65ee1d2af116e3fb4e2dca116ae56fc03

Merge pull request dotnet/coreclr#4983 from benaadams/patch-2

Add slack channel

Commit migrated from https://github.com/dotnet/coreclr/commit/370e4143dfec911790c0e06a15156ddf5c91f310

Merge pull request dotnet/coreclr#3074 from Dmitry-Me/useElseIfForExclusive

Use else-if for mutually exclusive conditions

Commit migrated from https://github.com/dotnet/coreclr/commit/1973f0f500e33ca237f1587dfea71073bb9a997e

Enable building only native test components

Commit migrated from https://github.com/dotnet/coreclr/commit/ffac9c48557b58dc8e6369de92c66d6e97525afe

Merge pull request dotnet/coreclr#5889 from wtgodbe/Loader

Fix race condition in Loader regression 523654 test

Commit migrated from https://github.com/dotnet/coreclr/commit/f6ad954733e4c8f0bbb342bc3412747663905cb2

Merge pull request dotnet/coreclr#5879 from mattwarren/patch-1

Added links to CoreCLR issues, small formatting fix

Commit migrated from https://github.com/dotnet/coreclr/commit/cd469732bc763516dbde160ef5859afcc058cc65

Merge pull request dotnet/coreclr#5888 from adityamandaleeka/generate_core_dumps_runtest

Set coredump_filter to include shared library code in CI core dumps

Commit migrated from https://github.com/dotnet/coreclr/commit/742df17fff977695cd36337169b16af0057ad723

Fix race condition in Loader regression 523654 test

Commit migrated from https://github.com/dotnet/coreclr/commit/27e1cdfe3fc50b5e9250ea5b4c7deec793b5f6b0

Merge pull request dotnet/coreclr#5886 from swgillespie/longgc-netci

Switch to double-quotes for interpolated string in netci.groovy

Commit migrated from https://github.com/dotnet/coreclr/commit/cbddfc0dfd42077a23def2118636fe5061c6093a

Set coredump_filter to include shared library code.

Commit migrated from https://github.com/dotnet/coreclr/commit/e42ea2920222716e9751f78fa72b3256f85d8d4e

Update Linux tracing instructions for Docker containers.

Commit migrated from https://github.com/dotnet/coreclr/commit/f5f41ae0baa783fae5c63a85f2bb53758ae55632

Switch to double-quotes for interpolated string

Commit migrated from https://github.com/dotnet/coreclr/commit/dedf88fadb44e046cc570e76c5c78fac70681e21

Merge pull request dotnet/coreclr#5882 from stephentoub/fix_ev_bytearray

Fix EventSource deserializing of byte[]s

Commit migrated from https://github.com/dotnet/coreclr/commit/f5a854bd323e5e327ec1a011dc494d2abb1e7721

Merge pull request dotnet/coreclr#5875 from pgavlin/JitStdoutVbuf

Disable buffering on jitstdout.

Commit migrated from https://github.com/dotnet/coreclr/commit/ee680783778ed0abb186ae41a8c861d5cdcadccd

Fix EventSource deserializing of byte[]s

It's incorrectly repeating the first element for all elements.

Commit migrated from https://github.com/dotnet/coreclr/commit/4a3ab6816124ef63e371bd9e7f80e05709f7a761

Merge pull request dotnet/coreclr#5876 from dotnet-bot/UpdateDependencies20160620061718

Updating External dependencies to rc4-24220-00

Commit migrated from https://github.com/dotnet/coreclr/commit/79ae4d44b7dc71f098ab97e712f8af7c493e720f

Added links to CoreCLR issues, small formatting fix

Commit migrated from https://github.com/dotnet/coreclr/commit/60de14e7ebb4f42d358e84ec192d64f0266cb39f

Fix GC background thread start in OOM (dotnet/coreclr#5840)

This change fixes a problem that happened when the `gc_heap::create_bgc_thread`
calls SetupUnstartedThread and it fails to allocate a Thread object and throws.
The GC doesn't expect that and so when the stack is unwound, the `gc_heap::gc_started`
stays set. Now we try to allocate memory for the Throwable for the exception, so we go
to GC heap and since there is not enough space, we end up calling
`gc_heap::try_allocate_more_space`, which calls `gc_heap::wait_for_gc_done`.
And that’s the end of it, since the `gc_started` is still set and we wait forever.

The fix is to catch exception from the SetupUnstartedThread. I have also fixed couple of
places where this method was being called and the exception was not expected.

As an additional cleanup, I have moved the thread creation in GC to the GCToEEInterface.

Commit migrated from https://github.com/dotnet/coreclr/commit/878cd5d88fc38fe0131455c84a6793c562238f70

Updating External dependencies to rc4-24220-00

Commit migrated from https://github.com/dotnet/coreclr/commit/600b46bd294b81b41dfa5d275938098975ca622e

Disable buffering on jitstdout.

This avoid the need to call fflush() throughout the code.

Commit migrated from https://github.com/dotnet/coreclr/commit/bc3533fb742458bd6939f7f878bf8f477cbac791

Merge pull request dotnet/coreclr#5380 from sejongoh/x86_decompose_storeind

Decomposing 64-bit storeind instruction to 32-bit storeind instructions

Commit migrated from https://github.com/dotnet/coreclr/commit/b464dc317d49b84cf2e3a2e4f65813c23ea51a41

Decomposing 64-bit storeind instruction to 32-bit storeind instructions

Commit migrated from https://github.com/dotnet/coreclr/commit/780400f1e579621f0a0d2347f8393498012b1549

Fix source/line info in unhandled exceptions (dotnet/coreclr#5874)

* Fix no source/line info for unhandled exceptions.

Issue dotnet/coreclr#5828.

* Remove comment.

Commit migrated from https://github.com/dotnet/coreclr/commit/4144d4cb720399fb9fe0a8a03bffac07ba8fb065

Remove the corner cases from sscanf test (dotnet/coreclr#5873)

Commit migrated from https://github.com/dotnet/coreclr/commit/5546991296f5e407cf6797a914092cf8317b0ec0

Update GC from CoreRT (dotnet/coreclr#5859)

https://github.com/dotnet/corert/tree/master/src/Native/gc dotnet/coreclr@53276850bc2e7e531908434b2d062fcff3e1d58d

Commit migrated from https://github.com/dotnet/coreclr/commit/734f9814f534b324a9268804371cf9da9245ec78

Merge pull request dotnet/coreclr#5858 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/0e5f844e008b3a9ea537a0dfcb84f51f8b79e60b

Merge pull request dotnet/coreclr#5865 from kyulee1/fixgcstruct

ARM64: Fix GC hole for Multi-Reg Struct

Commit migrated from https://github.com/dotnet/coreclr/commit/22788578877f3a4741f4448eb06ae14687870e03

Merge pull request dotnet/coreclr#5863 from adityamandaleeka/generate_core_dumps_runtest

Add option to runtest.sh to enable limited dump generation.

Commit migrated from https://github.com/dotnet/coreclr/commit/84948692baac873d9f7407c6ca2863a900c04a0e

Merge pull request dotnet/coreclr#5868 from AndyAyersMS/BooleansRule

JIT: standardize on bool for return type of GenTree OperIs methods

Commit migrated from https://github.com/dotnet/coreclr/commit/e787b60ab7fbe8ab62f1986145b7aec6104fd4c2

Merge pull request dotnet/coreclr#5862 from adityamandaleeka/remove_dead_code

Remove some dead code in notifyexternals

Commit migrated from https://github.com/dotnet/coreclr/commit/1e513085692a1d5208efc002e2dead5bb895fb3b

Merge pull request dotnet/coreclr#5831 from briansull/fix-5759

Fix for issue 5795

Commit migrated from https://github.com/dotnet/coreclr/commit/13675a3c6df31caad2db8e634d9ba7fac26e896d

JIT: standardize on bool for return type of GenTree OperIs methods

We had a mixture of bool and int return types. Standardize on bool.
Otherwise callers must match the mixed typing to avoid the fatal
C4800 warning on windows.

Commit migrated from https://github.com/dotnet/coreclr/commit/b1988c8d4029b20d68b8e6102e7d863385595c51

Remove dead code in notifyexternals

Commit migrated from https://github.com/dotnet/coreclr/commit/839e5aba21fea49c7b046ec14205d200de4ab55d

Enable core dump generation in CI test jobs

Commit migrated from https://github.com/dotnet/coreclr/commit/1ad32ce9c82b0e5c1594ecec88423803045cc824

ARM64: Fix GC hole for Multi-Reg Struct

Fixes https://github.com/dotnet/coreclr/issues/5817
When we pass struct in multi-reg, we dropped the GC info on creating
instruction.
The fix is that for GT_LCL_FLD, we enforce non-float type size while
holding the gc type.

Validate with small cutdown. And also confirmed that the gc range is
reasonable in System.Reflection.RuntimeParameterInfo.GetParameters.

Commit migrated from https://github.com/dotnet/coreclr/commit/9a153fb228a59017a632549bc6501b60838b9177

Merge pull request dotnet/coreclr#5836 from RussKeldorph/nogcsosx

Disable GCStress=C periodic triggers for OSX

Commit migrated from https://github.com/dotnet/coreclr/commit/ee3ad560653dc74e2a98642b2bdf4115f9d208f1

Merge pull request dotnet/coreclr#5856 from AndyAyersMS/ConstantObservations

JIT: Cleanup code in and around fgFindJumpTargets

Commit migrated from https://github.com/dotnet/coreclr/commit/42d3f36d802b902c54288d75526908c4f8050026

Add option to runtest.sh to enable limited dump generation.

Commit migrated from https://github.com/dotnet/coreclr/commit/b202782ae96981535e9194bd42a2ff5c6ba8fd78

Fix for issue 5795

We incorrectly pass the ret buf arg in x9 instead of x8

It is required that we call SortArgs and EvalArgsToTemps whenever we have any register arguments
We were not doing that when we only had a retBufArg argument in x8.

Fix for UNIX_AMD64 structs

Commit migrated from https://github.com/dotnet/coreclr/commit/0809be00850fec3eca9a968d36750fc44d69e2f3

Merge pull request dotnet/coreclr#5854 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/b387b6eb6f4e1ddf4c20aece8d1508d011915c4c

JIT: Cleanup code in and around fgFindJumpTargets

Reorder code to remove gotos. Extract two large chunks of logic as
subroutines. Add braces and update comments. Bring `fgStack` class up
to current Jit coding conventions.  Reunite some orphaned comments for
fgFindJumpTargets.

No behavior change expected. No diffs seen via jit-diff tool. No diffs
seen in desktop testing.

Commit migrated from https://github.com/dotnet/coreclr/commit/06f902ab0614e76efb978249e62e4273f555431f

Merge pull request dotnet/coreclr#5839 from swgillespie/gc-batch-fix

Fix GC test batch script skip conditions that were behaving unexpectedly

Commit migrated from https://github.com/dotnet/coreclr/commit/61c639ba82beea7483b20d1adad352ffddfe23f5

Fix full framework build break

[tfs-changeset: 1613359]

Commit migrated from https://github.com/dotnet/coreclr/commit/8f606f32391ee12babe38a91b3501cc31019f94b

Merge pull request dotnet/coreclr#5852 from gkhanna79/Fix5837

Correctly resolve binding from Resolving event for static load

Commit migrated from https://github.com/dotnet/coreclr/commit/585d669d73a613f92501199cbf11a8fee13fbbe9

Changes to update TFS packages post 1.0

[tfs-changeset: 1613358]

Commit migrated from https://github.com/dotnet/coreclr/commit/4d0f26aeeae7fbbd3ede20bc89f9acd6e7a7eac6

Add missing check to allow assembly bound using the Resolving event to be used during static binding scenario

Commit migrated from https://github.com/dotnet/coreclr/commit/c335d794bd56f4971bd37bbb220b753ea04ec837

Merge pull request dotnet/coreclr#5843 from dotnet-bot/UpdateDependencies20160617052045

Updating External dependencies to rc4-24217-00

Commit migrated from https://github.com/dotnet/coreclr/commit/7b1dfcf9adb52e2d2382259786ffe939c494510c

Use LEAF_END_MARKED instead of LEAF_END for ARM64 debugbreak.S (dotnet/coreclr#5850)

This commit applies the changes in dotnet/coreclr#5847 (which fixes dotnet/coreclr#5845) into ARM64
stub.

Commit migrated from https://github.com/dotnet/coreclr/commit/6ea358025edca8908cf9823ad62734530dc85578

Use Use LEAF_END_MARKED instead of LEAF_END for various functions (dotnet/coreclr#5849)

This commit fixes dotnet/coreclr#5848.

Commit migrated from https://github.com/dotnet/coreclr/commit/897fe098ad1cf08a83e68da76a33c68dad82f3e7

Use LEAF_END_MARKED instead of LEAF_END for DBG_DebugBreak (dotnet/coreclr#5847)

This commit tries to fix dotnet/coreclr#5845

Commit migrated from https://github.com/dotnet/coreclr/commit/1df2061b82e10047463e425aaeb7008c7a5f3209

Merge pull request dotnet/coreclr#5842 from prajwal-aithal/devel/arm-ci-emul-fix

ARM-CI: Create mount path if not already present

Commit migrated from https://github.com/dotnet/coreclr/commit/7b32045a32ac744105c607a15c03855508279b25

Updating External dependencies to rc4-24217-00

Commit migrated from https://github.com/dotnet/coreclr/commit/bd79c382864f6bd0e6dc84771cf037083a30b2e4

ARM-CI: Create mount path if not already present

* Previous PRs assumed that the mount path is already created on the CI machine
* This results in errors if the same is not true

Signed-off-by: Prajwal A N <an.prajwal@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/173e56ed4a43ff7863bb78e95d94bb4a1673970a

Merge pull request dotnet/coreclr#5841 from rahku/master

Fix arm64 build break

Commit migrated from https://github.com/dotnet/coreclr/commit/9593aae441d823e2bfe912a33e4b463b704b020e

Fix arm64 build break

Commit migrated from https://github.com/dotnet/coreclr/commit/32c9ea52468df18285efa8eb617d16c1baf87fd4

Merge pull request dotnet/coreclr#5822 from adityamandaleeka/setup-runtime-dependencies_changes

Remove set -x from tests/setup-runtime-dependencies.sh.

Commit migrated from https://github.com/dotnet/coreclr/commit/f64c1eea8f1c898d02362549cb3acd7eb9c4b56c

Fix GC test batch script skip conditions that were behaving unexpectedly

Commit migrated from https://github.com/dotnet/coreclr/commit/8964be339e7836c1da8acae1d1c47d4ca4aee6e2

Disable GCStress=C periodic triggers for OSX

Fixes dotnet/coreclr#5763

Commit migrated from https://github.com/dotnet/coreclr/commit/9360831fb2acfc6f13023b4e8c084f2c956bf34e

Merge pull request dotnet/coreclr#5835 from wtgodbe/buildFix

Fix error when passing msbuild args to build.cmd/buildtest.cmd

Commit migrated from https://github.com/dotnet/coreclr/commit/d3ab0326868872a0d65d7cd092fcbd4cdf253a72

Fix error when passing msbuild args to build.cmd/buildtest.cmd

Commit migrated from https://github.com/dotnet/coreclr/commit/54dd349dbf706aef10515d9e907fd18ae377717a

Mark Volatile methods with NonVersionable attribute (dotnet/coreclr#5830)

Commit migrated from https://github.com/dotnet/coreclr/commit/d3371a42051db96b3f93a6d01358d17b2db9103b

Fix some typos in setup-runtime-dependencies.cmd

Commit migrated from https://github.com/dotnet/coreclr/commit/bbf48b9f2481ef48146b5d5892e804396286bbd7

Merge pull request dotnet/coreclr#5821 from kyulee1/fixwb

ARM64: Fix WriteBarrier

Commit migrated from https://github.com/dotnet/coreclr/commit/9c504436ed09e6a31251f3b7d85d457f9c5da9f9

ARM64: Fix WriteBarrier

I think this finally fixes most of long outstanding GC issues that appear in different
forms so far that include dotnet/coreclr#4877, dotnet/coreclr#4879, dotnet/coreclr#4890 and more.

The issues was WriteBarrier implementation.
When we update card table, the address has been already incremented by 8.

With this fix, all corefx tests seem to run on xunit framework without crashing.
I verified this with an out-of-date build locally, so there are not found
assembly errors like System.Runtime.Extensions with different versions, though.
These are what I tested so far that safely finished all runs with very high percentage of pass.
System.Collections.Tests
System.Dynamic.Runtime.Tests
System.Linq.Expressions.Tests
System.Linq.Parallel.Tests

Potentially more coreclr tests will pass. I will update them as tests go.

Commit migrated from https://github.com/dotnet/coreclr/commit/49c2eec8568b4471f1dcbc0e0f4016ff62c7c989

Merge pull request dotnet/coreclr#5824 from dotnet-bot/UpdateDependencies20160616051753

Updating External dependencies to rc4-24216-00

Commit migrated from https://github.com/dotnet/coreclr/commit/5de21b3b4d5dad2f069d1dfd4f8efe6d88f4e6f8

Remove end labels from regular asm procs on Unix (dotnet/coreclr#5777)

All ASM proc now unnecessarily have xxx_End label marking
the end of the proc. This causes confusing stack traces in
some cases, especially on OSX, when instead of a name of
an actual function, a name of the previous one with the
_End attached to it is shown.
This change fixes that by modifying the LEAF_END macro to
not to be defined as an equivalent of the LEAF_END_MARKED.

Commit migrated from https://github.com/dotnet/coreclr/commit/aaf5e7d6a1fa53576bbaa057eb7b7147281284cf

Merge pull request dotnet/coreclr#5819 from AndyAyersMS/InlineTestsV1

Inliner: simple performance tests

Commit migrated from https://github.com/dotnet/coreclr/commit/d5a0338ddefc9551f3f573b4950ab046f58d9464

Updating External dependencies to rc4-24216-00

Commit migrated from https://github.com/dotnet/coreclr/commit/d861cbe4febdbf3deff214c5444daf422e9adef2

Merge pull request dotnet/coreclr#5794 from briansull/vm-retbuf

Fixes for two JIT helpers that should not use the x8 RetBuf argument on ARM64

Commit migrated from https://github.com/dotnet/coreclr/commit/9ec70e119cca0cf317e1d64a3efd2bb9021e6d80

Remove set -x from tests/setup-runtime-dependencies.sh.

Commit migrated from https://github.com/dotnet/coreclr/commit/0aed7c9a2c88a9332712905dbcd06c855cf7586d

Fixes for two JIT helpers that should not use the x8 RetBuf argument on ARM64

Fixes these two JIT helpers" CORINFO_HELP_GETFIELDSTRUCT and CORINFO_HELP_UNBOX_NULLABLE
We no longer set GTF_CALL_M_RETBUFFARG for the two special Jit helpers
We insert the extra byref argument in the x0 position for these two JIT helpers

Commit migrated from https://github.com/dotnet/coreclr/commit/987536accfc50a689b914f343d79fb3588cc552b

Merge pull request dotnet/coreclr#5820 from wtgodbe/groovyR2R

Update crossgen strings for coreclr coverage tests

Commit migrated from https://github.com/dotnet/coreclr/commit/65786f04d36e9886c4e1b004e5d233eb708fa0b9

Update crossgen strings for coreclr coverage tests

Commit migrated from https://github.com/dotnet/coreclr/commit/e071b691843ae71b81855a8704862871dbb9975d

Merge pull request dotnet/coreclr#5815 from BruceForstall/RemoveAmd64Legacy

Remove AMD64 code from legacy code path

Commit migrated from https://github.com/dotnet/coreclr/commit/9a28e845d94df0f3d95903e9cfd77251d67b061e

Merge pull request dotnet/coreclr#5814 from JohnChen0/r2rtest

Modify CrossGen test script to work around cmd.exe bug

Commit migrated from https://github.com/dotnet/coreclr/commit/b3806248c80471c70d5fb80b0f4676bda2cc49f0

Inliner: simple performance tests

Tests that demonstrate that constant arguments passed to callees can
lead to inlining performance wins. All numeric types are tested, as
well as strings.

Tests are generally written as positive/negative pairs with calls to
the same inlinee. This exposes the call site sensitivity. Performance
of the positive test should be better than the negative test.

The overall benchmarking approach used here is something that we might
consider adopting for other small-scale codegen performance tests.

Commit migrated from https://github.com/dotnet/coreclr/commit/1b34b726c3644ca494be54f90bbb190905e52e4e

Fix exception stacktrace when ulimit is hit OSX. (dotnet/coreclr#5802)

* Fix exception stacktrace when ulimit is hit OSX.

Issue dotnet/coreclr#5782.

Wrap the everything in try/catch replacing the existing try/finally
and removed the recursion protection thread var.

* Restore recursion protection.

Commit migrated from https://github.com/dotnet/coreclr/commit/93a9d70bfa87193d29b69b3242f5cc588f417f0d

Merge pull request dotnet/coreclr#5786 from prajwal-aithal/devel/arm-ci-cross-build-fix

ARM-CI: Convert Linux ARM emulator CI check to cross build (fixes PR dotnet/coreclr#5680)

Commit migrated from https://github.com/dotnet/coreclr/commit/ab4cc73d46fd733fb3976b4fe53d8837257cc948

Remove AMD64 code from legacy code path

There were some AMD64 #ifdefs and code in the legacy code path from an
ancient AMD64 porting effort. They are unused, and were confusing to me
when searching the code base, so I removed them.

Commit migrated from https://github.com/dotnet/coreclr/commit/f03d7f5655f4f0d1f3d6be6f66965a2f5e6c477d

Update SpecializeComparer for enums (dotnet/coreclr#5805)

Fixes dotnet/coreclr#5751

Commit migrated from https://github.com/dotnet/coreclr/commit/b3b183e7b4b384792370fae56dcb702afbfcb2a9

Fix sos.DumpIL on LP64 systems with s/long/LONG/g (dotnet/coreclr#5810)

sos.DumpIL command used readData<long> to disassemble CIL,
this failed on LP64 systems like Linux where long is 8 bytes.

This commit tries to fix dotnet/coreclr#5457.

Commit migrated from https://github.com/dotnet/coreclr/commit/bc273bb498c51720e7199ea44d15ee6b1bed07d4

Remove useless gtSetFlags calls

For xarch `gtSetFlags` returns true and that makes `genIntToIntCast` use an `and` instruction instead of `mov`/`movzx`. This serves no purpose as no code ever calls `gtRequestSetFlags` on cast nodes nor does `GT_JTRUE` expects a cast node as its operand.

`gtSetFlags` seems to be a leftover from the legacy codegen.

Commit migrated from https://github.com/dotnet/coreclr/commit/845d34814cbe4f0f8cd342d04bd47fc7ef1c79b2

Merge pull request dotnet/coreclr#5807 from Maoni0/obj_addr

Need to filter addresses not in the heap range in NextObj

Commit migrated from https://github.com/dotnet/coreclr/commit/b8813ee80bc00ccf46cc781de5d2f5f807813319

Modify CrossGen test script to work around cmd.exe bug

Commit migrated from https://github.com/dotnet/coreclr/commit/d33d62e74cd8577420160685190e5c1eabfed9bb

Merge pull request dotnet/coreclr#5682 from lemmaa/fix-error-index-must-be-an-integer-in-range

[ARM64/Linux] Fix `error: index must be an integer in range.`

Commit migrated from https://github.com/dotnet/coreclr/commit/25b1e6a9eb3cac4abadaf1a65d7a75448cc7597e

Initial support of breakpoint setting by source file + line on Linux using portable pdb reader (dotnet/coreclr#5688)

* Initial support of breakpoint setting by source + line on Linux

* Fix macro redefinition error in OSX build

* Fix after review from Mike McLaughlin

Commit migrated from https://github.com/dotnet/coreclr/commit/859307b4787bbacbe28d2efe1d54c49177525562

[ARM64/Linux] Fix `error: index must be an integer in range.`

- Fix invalid varible name `*X19_X28' to '*X19_X29'
- Remove code for capturing `fp` status.

Commit migrated from https://github.com/dotnet/coreclr/commit/3b2ce833f869cbc8abd5a586b671eb03e8948185

Need to filter addresses not in the heap range in the NextObj verification function.

Commit migrated from https://github.com/dotnet/coreclr/commit/c8cbe2aef8b3c11709c287f344871602d8731f37

Merge pull request dotnet/coreclr#5773 from Maoni0/grow_card_2

Making the fix of runtime suspension check complete

Commit migrated from https://github.com/dotnet/coreclr/commit/488c377745cd2cbdfac711d2199dfeefeb24c5f1

Merge pull request dotnet/coreclr#5803 from dotnet-bot/from-tfs

Merge changes from TFS

Commit migrated from https://github.com/dotnet/coreclr/commit/9ea104961f899c3b092bf958fa21a7e07e493c09

My last fix of checking whether the runtime was suspended was incomplete.
I needed to check at the 3 other places. Before the software write watch
implementation, this check was in the write barrier code itself and was
doing the right thing. So I am just using the same thing (ie, IsGCThread)
to check whether the runtime is suspended.

Commit migrated from https://github.com/dotnet/coreclr/commit/f1aeb18e104cf02439c948ab5f20cf4bc8a27b03