Rename cseArrLenMap to optCseArrLenMap

This lines up better with other names in code that optimizes common sub-
expressions.

Commit migrated from https://github.com/dotnet/coreclr/commit/1dbbc0f6433e8fd6c06b925af23d6756d51c24ce

Factor signedness test into helper

Commit migrated from https://github.com/dotnet/coreclr/commit/98492cf520a7e2af95a8344676f561795fedf230

Update array length compare value numbers on CSE

Modify CSE to identify compares which are functions of CSE candidate array
length nodes; when those length nodes get CSEd and consequently have their
value numbers updated, also update the value number on the compare
consuming the array length; this way the assertions generated in assertion
prop for the different compares on the CSEd array will use the same value
numbers, and range check elimination becomes more effective.

Resolves dotnet/coreclr#5371

Commit migrated from https://github.com/dotnet/coreclr/commit/04e0c4c850a0ad6762655807e1ca289e9b0cacfe

JIT: Finally chain merging (dotnet/coreclr#8810)

Add an optimization that performs a specialized tail merge for chains
of callfinallys. These can arise from try-finallys where there are
multiple exit points from the try that have the same continuation.

When the jit generates a callfinally, it does so without considering
whether some previously generated callfinally might invoke the same
handler and then continue on to the same continuation.

This optimization looks for callfinallys that invoke the same handler
and have the same continuation and effectively merges them into one
canonical callfinally.

This optimization is done bottom-up (from outermost handler invocation
to innermost) to allow the merging done at an outer levels to enable
merging at inner levels.

This optimization saves code size and also results in more compact EH
reporting, since the callfinallies are reported to the runtime as
duplicate EH regions.

When run upstream of finally cloning, finally chain merging also allows
more of the paths exiting the try to exit via the clone.

Also fix an issue in block ref count maintenance during empty try
removal that caused an assert during finally chain merging.

Commit migrated from https://github.com/dotnet/coreclr/commit/0fae96e0973d09b907124ddc3c62bdad3160f27d

Merge pull request dotnet/coreclr#9479 from AndyAyersMS/TrimInlineGcRefs

JIT: null out inline gc type locals after inline body

Commit migrated from https://github.com/dotnet/coreclr/commit/995b8694a55a2c7a9f05a8a46d63afe267be5b9d

[ARM64/Unix] LLDB (dotnet/coreclr#9504)

* [Arm64/Unix] Default to no lldb in build-rootfs

lldb is not readily available on arm64 Ubuntu releases prior to
16.10

Set the default lldb version to none to allow building Arm64 rootfs

* [Arm64/Unix] Warn if lldb is missing

SOS lldb plugin is an optional component

lldb is not availiable on arm64 prior to lldb3.9

lldb3.9 is not readily available on many ubuntu until 16.10

Change error to warning to simplify building arm64

Commit migrated from https://github.com/dotnet/coreclr/commit/70b0f61459a43abaa31203667090fb0663899706

Fix build-rootfs.sh to include lldb package (dotnet/coreclr#9608)

lldb package is missing for architectures other than arm and armel.

Signed-off-by: Hyung-Kyu Choi <hk0110.choi@samsung.com>
Commit migrated from https://github.com/dotnet/coreclr/commit/94d1639d5d0b969489abbb3ce78b11a72c4493c4

[x86/Linux] Fix CreateInstantiatingILStub (dotnet/coreclr#9590)

The hidden argument should be always passed last for x86

Commit migrated from https://github.com/dotnet/coreclr/commit/beaf718cc6e3a0e786191ce322839e66619b5a54

Merge pull request dotnet/coreclr#9472 from ramarag/RMLocalizationparity

RM localization parity with desktop

Commit migrated from https://github.com/dotnet/coreclr/commit/4e992df6ea9dd6c2dffe0f471f7def62da66475d

Rewrite GetRegisterAddressByIndex using getRegAddr (dotnet/coreclr#9574)

* Rewrite GetRegisterAddressByIndex using getRegAddr

* Use offset-based indirection in x86 getRegAddr

Commit migrated from https://github.com/dotnet/coreclr/commit/574416d9db7d91e7dc52ca60f1996fbdc79d9aef

Merge pull request dotnet/coreclr#9593 from wtgodbe/skipGCTests

Return exit code 0 for long-running/GCSimulator tests in Helix

Commit migrated from https://github.com/dotnet/coreclr/commit/45628e5e327c419f5a32ceb8022af4549a940c26

Removing  nativeGetResourceFallbackArray support from Vm

Commit migrated from https://github.com/dotnet/coreclr/commit/687a5065f46baa624007e484da1d6505af1dd790

Merge pull request dotnet/coreclr#9583 from JosephTremoulet/ByrefConst

Value number casts and zeros of TYP_BYREF

Commit migrated from https://github.com/dotnet/coreclr/commit/8d64beaf8a6266683f1df85f1396b7ddfcc33ce4

Merge pull request dotnet/coreclr#9589 from dotnet-bot/master-UpdateDependencies

Update CoreClr to beta-25014-04 (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/5809869904ec265a177c267816db4cede02e5e9b

Removing Os specified ulimatefallback for localization

Commit migrated from https://github.com/dotnet/coreclr/commit/df2bc03c7729d1f55bfb6b38bbe0e15dcd51418e

Merge pull request dotnet/coreclr#9485 from sivarv/span

Promote struct containing fields of struct of a single pointer-size field

Commit migrated from https://github.com/dotnet/coreclr/commit/c862f97af8358954477ef26fd210446f61fa1b79

Return exit code 0 for long-running/GCSimulator tests in Helix

Commit migrated from https://github.com/dotnet/coreclr/commit/27258e64ebe842545a9fbcd9a06ce7e7fb81d86a

Merge pull request dotnet/coreclr#9522 from sandreenko/GVM-for-corert

Generic Virtual methods  for CoreRT

Commit migrated from https://github.com/dotnet/coreclr/commit/fadf7ebeb07f41c41a7409401efade42dbc760c4

Update CoreClr to beta-25014-04

Commit migrated from https://github.com/dotnet/coreclr/commit/bb401b0a926a6e0b4891cbc40660f49611406c41

Fix EH_LOG Catch set notation (dotnet/coreclr#9586)

Update log to indicate EHClause.TryEndPC in non-inclusive

Commit migrated from https://github.com/dotnet/coreclr/commit/cb8074ab5568044be64f158c97dccacfea8eb62a

Promote struct containing fields of struct of a single pointer-size field.

Commit migrated from https://github.com/dotnet/coreclr/commit/f686b5fca7940723e6f2bc966a43490902b2e8bb

Merge pull request dotnet/coreclr#9584 from wtgodbe/chmod

chmod +x all .sh files before Helix execution

Commit migrated from https://github.com/dotnet/coreclr/commit/9759c8d4c13155c64e707989106b36b88c044579

Generic Virtual calls for CoreRT

Commit migrated from https://github.com/dotnet/coreclr/commit/7a547bc9cd166c6f3c91c1f1cc13dfa549fb5c7a

chmod +x all .sh files before Helix execution

Commit migrated from https://github.com/dotnet/coreclr/commit/b3a5704b86f707191c685d27a6c2228d8e23df1c

Merge pull request dotnet/coreclr#9579 from dotnet-bot/master-UpdateDependencies

Update CoreClr to beta-25014-03 (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/c0ef1323ec3db4b49e00cdb3a4d631000eeb1ea3

JIT: null out inline gc type locals after inline body

Inlining can sometimes end up stretching GC lifetimes for inlinee
locals past the end of the inlinee method body.

This change extends the work done for inlining methods with pinned
locals to null out all gc ref type locals. If there are any gc type
locals, the return value is copied to a temp inside the inlinee body,
and then at the end of the body the gc type locals are set to null.

In most cases these null stores end up getting removed by dead code
elimination, but if the local ends up untracked, the store remains
and limits the active GC lifetime.

This change requires more extensive use of the return value spill temp
(since we must be absolutely sure the return value expression does not
depend on any of the locals). We now use the spill temp if any local is
a gc ref type (used or not).

More widespread use of the spill temp exposed an issue in the tail call
transformation, where the side effect flags were overly pessimistic for
a post tail-call GT_COMMA statement that represented an ignored return
value from an inlined call. The root issue is that the return value
placeholder is given a GTF_CALL effect but later when the actual return
value expression is substituted in place there may be no side effect --
in particular this happens when the return value expression is the spill
temp.

So, we also update the post tail-call side-effect-free statment check to
look through the potentially pessimistic GT_COMMA flags and check for side
effects on the child nodes.

Closes dotnet/coreclr#9218.

Commit migrated from https://github.com/dotnet/coreclr/commit/05721eebc54af7bb535f8afb7c67a557cbac5dd5

Value number casts and zeros of TYP_BYREF

Value numbering already has a representation for constants of byref type.
Hook up both `VNZeroForType` and `EvalCastForConstantArgs` to return a
value number using this representation (rather than fail an assertion)
when the requested result type is byref.

Fixes dotnet/coreclr#9453

Commit migrated from https://github.com/dotnet/coreclr/commit/9155a99333c09b13ffc28aaeb3be3894e1b17b7a

Update CoreClr to beta-25014-03

Commit migrated from https://github.com/dotnet/coreclr/commit/277d4bab4a1f82bf84ac2ec90c23a06055cec38f

Merge pull request dotnet/coreclr#9566 from pgavlin/MeasureIR

Add IR size after certain phases to the JIT log.

Commit migrated from https://github.com/dotnet/coreclr/commit/8cb07cf09c31c0ac54e1a9248642e544d351e05b

Merge pull request dotnet/coreclr#9575 from dotnet-bot/master-UpdateDependencies

Update CoreClr, CoreFx to beta-25014-02, beta-25014-02, respectively (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/6203c0211ed65afafd2cb003c0a64b6f3409f1d4

Add case-insensitive String.Replace overloads (dotnet/coreclr#9316)

Added overloads for String.Replace so that they now accept
StringComparison and CultureInfo as input parameters.

Commit migrated from https://github.com/dotnet/coreclr/commit/d0f8481cd42e58013879326871455586a86bec6e

Merge pull request dotnet/coreclr#9475 from jashook/lst_creator_update

Update lst_creator and Arm64 lstFile

Commit migrated from https://github.com/dotnet/coreclr/commit/3e7d8a5deb0cb761b848e0370e57cf64b283c4f4

Update CoreClr, CoreFx to beta-25014-02, beta-25014-02, respectively

Commit migrated from https://github.com/dotnet/coreclr/commit/096f26c22e8543fc958a092a56d8ade8f9d8909d

[x86/Linux] Fix IL Stub for Shared Generic (dotnet/coreclr#9571)

Fix parameter order in UnboxingILStub for Shared Generic

Commit migrated from https://github.com/dotnet/coreclr/commit/c055f7ba7d85347e1cb88937964f39d96b12d79e

Merge pull request dotnet/coreclr#9411 from hqueue/cross/common

Use same logic to prepare rootfs across dotnet if possible

Commit migrated from https://github.com/dotnet/coreclr/commit/daeb6927dc006fcda24aa3c7384f57da18a95191

Merge pull request dotnet/coreclr#9546 from parjong/fix/issue_9545

[x86/Linux] Ignore fake jump while checking funclet branches

Commit migrated from https://github.com/dotnet/coreclr/commit/27fdc2079fc3ffd44c7025155e70d42d2faa19b1

Merge pull request dotnet/coreclr#9572 from AndyAyersMS/FixTailCallStress

Jit: fix gtIsRecursiveCall

Commit migrated from https://github.com/dotnet/coreclr/commit/9d7bb193efc91352f10e3ae4ed1efb48980b2978

Merge pull request dotnet/coreclr#9573 from dotnet-bot/master-UpdateDependencies

Update CoreFx to beta-25014-01 (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/80fa6187fdd253a2dbeff11502685fabc928a208

Merge pull request dotnet/coreclr#9567 from fiigii/master

Directly support Min/Max intrinsic for Vector<T> on SSE3_4 and above targets

Commit migrated from https://github.com/dotnet/coreclr/commit/59392bbb5b4eacd30f2ecbebc65b71dd95a5819a

Update CoreFx to beta-25014-01

Commit migrated from https://github.com/dotnet/coreclr/commit/520b9fae487ce955bf027e92b11e9c3c1d3cf2ae

Jit: fix gtIsRecursiveCall

When called from the inline compiler, this needs to look at the root
method's handle, not the inlined method's handle.

Fixes dotnet/coreclr#9568.

Commit migrated from https://github.com/dotnet/coreclr/commit/de8cad748bcd1f1a1bc2bcbc9ce5db154023c4a6

Format code.

Commit migrated from https://github.com/dotnet/coreclr/commit/52aead3ac5f282621336644b0ade2748dd7d8ad4

Merge pull request dotnet/coreclr#9298 from noahfalk/r2r

Rejit support for R2R

Commit migrated from https://github.com/dotnet/coreclr/commit/3cd73fb25a2608b4ef74bbbb8969a5d7ad9da213

Directly support Min/Max intrinsic for Vector<T> on SSE3_4 and above targets

Commit migrated from https://github.com/dotnet/coreclr/commit/e6fe29c6c6ca6e4ebc47e0556dfc196055e8dae7

Merge pull request dotnet/coreclr#9483 from dotnet-bot/master-UpdateDependencies

Update CoreClr, CoreFx to beta-25013-09, beta-25013-01, respectively (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/4f059553beab82aca5dff28227730ba976afeb99

Merge pull request dotnet/coreclr#9551 from danmosemsft/dead2

Remove dead source files in vm\**

Commit migrated from https://github.com/dotnet/coreclr/commit/5c0cf068303c5bb9439d46cb7eafd5fdeb1a718a

Merge pull request dotnet/coreclr#9564 from pgavlin/ReportCodeSize

Report code and GC info size in the JIT time log.

Commit migrated from https://github.com/dotnet/coreclr/commit/8f09876611179ea96b7b0988230b500d8e850020

Update lst_creator.

Generally refactoring, make it a little more robust and easier to use.
In addition, expand its functionality to update the lstFile.

Commit migrated from https://github.com/dotnet/coreclr/commit/0bbb3fbecae00c57bb4488f85bf052eedb13b86f

Add IR size after certain phases to the JIT log.

This change adds support for measuring and reporting the number of nodes
in a function after a certain subset of the JIT's phases. This reporting
is enabled by setting `COMPlus_JitMeasureIR` and `COMPlus_JtiTimeLogCsv`
in conjunction with each other.

Commit migrated from https://github.com/dotnet/coreclr/commit/a274b5af4bdc6af0919a28708b3085a59da32cd1

Merge pull request dotnet/coreclr#9560 from JosephTremoulet/TypeToTypeVN

Value number TypeHandleToRuntimeType helper

Commit migrated from https://github.com/dotnet/coreclr/commit/539b142c53c66702fd9e76335f591dd946ddbdd5

Update CoreClr, CoreFx to beta-25013-09, beta-25013-01, respectively

Commit migrated from https://github.com/dotnet/coreclr/commit/7c252140f3db634565baa1bc5075ebc47186a772

Fix build break

Commit migrated from https://github.com/dotnet/coreclr/commit/01656a9802c4885058a9da831f6e819688a799ed

Merge pull request dotnet/coreclr#9562 from AndyAyersMS/FixMagicTypeEquality

Jit: fix for broken type equality optimization

Commit migrated from https://github.com/dotnet/coreclr/commit/965d079c06a6945bfb022d3032ea7c3e2493ae68

Merge pull request dotnet/coreclr#9563 from pgavlin/FixPrintCsvHeader

Fix `JitTimeLog::PrintCsvHeader`.

Commit migrated from https://github.com/dotnet/coreclr/commit/63af0e030f9c2de244dbc997822169a1f3dc8c92

Rejit support for R2R images

Two changes:
a) R2R code wasn't being reported to the Rejit Manager when it was used, this is a simple fix in prestub.cpp. This makes the ReJit API work.
b) The bulk of the changes handle adding support for an inlining table to R2R so that ICorProfilerInfo6::EnumNgenMethodsInliningThisMethod can supply that information to profilers.

This was only tested on Windows thus far, but there is no apparent reason this change would be OS specific.

Commit migrated from https://github.com/dotnet/coreclr/commit/ac40eab10f2f65a0fe9c88b762da1719d5c3839c

Report code and GC info size in the JIT time log.

Just what it says on the tin.

Commit migrated from https://github.com/dotnet/coreclr/commit/1e2463998e62fcbd1c44ae0956fa8089fada72dd

[x86/Linux] Fix incorrect update in HijackFrame::UpdateRegDisplay (dotnet/coreclr#9448)

* [x86/Linux] Fix incorrect update in HijackFrame::UpdateRegDisplay

* Use ENUM_XXX_REGISTERS macro

Commit migrated from https://github.com/dotnet/coreclr/commit/ead3045fa6e4a43fc16f59a627bc8040df039511

Merge pull request dotnet/coreclr#9561 from wtgodbe/suseRuntimes

Remove OpenSuse13.2 from runtime section in all Project.Jsons

Commit migrated from https://github.com/dotnet/coreclr/commit/645f0ad659dda3e356330c36e5c4702040acfb32

Fix bytemark benchmark (dotnet/coreclr#9497)

I misunderstood how bytemark uses the `adjust` parameter and inadvertently
enabled self-adjustment for the xunit-perf versions of these tests. Not
surprisingly the results showed crazy run to run variations.

Update these tests to set `adjust = 1` to stop the self-adjustment.

Iteration and loop counts tweaked so that each test runs for roughly
1 second on the perf machines.

Commit migrated from https://github.com/dotnet/coreclr/commit/9613ba2e6b6ba47300684c004872fd2fe81573dd

Fix `JitTimeLog::PrintCsvHeader`.

This function attempts to suppress its output if the JIT time log is not
empty. Unfortunately, the method it uses to do this detection gives
incorrect results on Windows: as documented on MSDN, `ftell` will return
`0` for a file opened for appending until the first I/O operation on
that file occurs. This change fixes this by seeking to the end of the
file prior to `ftell`.

Commit migrated from https://github.com/dotnet/coreclr/commit/fdbd420a4df2f43219c2b149f0972c20f1590ba2

Remove OpenSuse13.2 from runtime section in all Project.Jsons

Commit migrated from https://github.com/dotnet/coreclr/commit/832e6e643380b3dc632231169f3c6d295dcf3e56

Jit: fix for broken type equality optimization

The jit relies on a particular tree remaining intact during importation
to optimize type equality tests commonly found in generics.

In dotnet/coreclr#7909 the jit started aggressively spilling the evaluation stack before
calls, which broke up the trees needed for the optimizations.

In the special cases pertaining to type tests the trees can safely remain
intact because we know the calls can't interact with the computations on
the stack. Recognize these cases and selectively suppress spilling.

Closes dotnet/coreclr#9552.

Commit migrated from https://github.com/dotnet/coreclr/commit/a26e2c670fc7a793794f4a499212a115c5d5a4b3

[Unix] Add runparallel.sh (dotnet/coreclr#9557)

Initial draft of a run script capable of keeping
high core count Arm64 servers saturated

Uses xargs to submit and schedule jobs

Commit migrated from https://github.com/dotnet/coreclr/commit/3d5d12d7e897d7c2d90ab83aa4eb95b410cb98f5

Value number TypeHandleToRuntimeType helper

This is a pure helper w/o side-effects, so add it to the lists of
tractable helpers in value-numbering; this allows redundant calls to be
CSEd, and fixes dotnet/coreclr#9552 so we can again optimize away type checks on type
parameters in generic code (a not-infrequent pattern).

Commit migrated from https://github.com/dotnet/coreclr/commit/4f2d083b67873a9281692d69c8088cc52f38b690

[Unix] twowaypipe unlink before mkfifo (dotnet/coreclr#9505)

Remove stale fifo when before mkfifo

This reduces bogus failures when corerun jobs were
killed with SIGKILL...

Commit migrated from https://github.com/dotnet/coreclr/commit/6185a8801d3d4402b3afb728856aa62b86dadb4a

[Arm64/Unix] Remove misleading stress message (dotnet/coreclr#9507)

* [Arm64/Unix] Remove misleading stress message

Commit migrated from https://github.com/dotnet/coreclr/commit/199739614911b8f7c9cd672cdd8225e22700fa3f

Remove dead validator.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/d1cfc9625334f7a64daf713335e997c1c8a8eaa7

Remove dead stackbuildersink.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/a79fee3b99fe8d6f171c7b26dae4fb1a51590d90

Remove dead rwlock.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/457ee7bbf1ce194cf2260ca202eae6aa1bcd445a

Remove dead remoting.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/c3eb35629731e40bf4ee826db88311f636f9ad36

Remove dead objectclone.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/0627527ec3b9921928e7ed3ba9f7d1c34cbdb627

Remove dead mixedmode.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/aac8c16336872daae128ad531720dcbafe7a98f5

Remove dead message.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/0226a2eb0c600d06d43ad54514b595a7d7a3f751

Remove dead mdadac.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/01cd52961742f595ca710027fd3b0714ad594262

Remove dead mda.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/b15fd281c15c39d26418e94d422e6eee148046a8

Remove dead gchost.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/85443510ce834866f2bc899e8512c2b7b90ee3ed

Remove dead crossdomaincalls.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/41a53ba525c708b229d1c545249bf95c40c10a38

Remove constrainedexecutionregion.cpp

Commit migrated from https://github.com/dotnet/coreclr/commit/6f05c7c8d283345b811cfe7abe1c2ad416301a12

Remove commethodrental

Commit migrated from https://github.com/dotnet/coreclr/commit/54a687af2ab167060392ea95dd2f8fac643c6880

Remove clrpriv* dead code

Commit migrated from https://github.com/dotnet/coreclr/commit/4a252cee944e66e7ad709bc11a31037c78fcdfe9

Remove dead assemblynamesconfigfactory etc files

Commit migrated from https://github.com/dotnet/coreclr/commit/57aaf669076c1fb4c756251192f301b7b6db22dc

Remove dead appdomainhelper* files

Commit migrated from https://github.com/dotnet/coreclr/commit/4adbd6765d79c25dbae8bce48083c8a4e81934f6

Merge pull request dotnet/coreclr#9542 from danmosemsft/defines3

Remove code corresponding to always defined symbols

Commit migrated from https://github.com/dotnet/coreclr/commit/2efbb9282c059eb9742ba5a59b8a1d52ac4dfa4c

Addendum for FEATURE_FUSION

Commit migrated from https://github.com/dotnet/coreclr/commit/9e3a2fa2faa2a79285fc472c7090821b405469d0

Addendum for FEATURE_APPX_BINDER

Commit migrated from https://github.com/dotnet/coreclr/commit/3e2323d3c240f12242f6202695032d744c69a9f2

Addendum for FEATURE_CODEPAGES_FILE

Commit migrated from https://github.com/dotnet/coreclr/commit/981accc3246e25b48ab8be9c1fbd246f3613f65f

[x86/Linux] Do NOT treat lea as a jump

Commit migrated from https://github.com/dotnet/coreclr/commit/0673b2b1ec8b97d8f62f7574b14a5a34fef6770c

Merge pull request dotnet/coreclr#9516 from sdmaclea/PR-ARM64-FAILS

[Arm64/Unix] Add list of known arm64 fails

Commit migrated from https://github.com/dotnet/coreclr/commit/8f3b42948fd24d13666ddd1bcfcbd4a5ac74a9ab

Merge pull request dotnet/coreclr#9446 from seanshpark/stkalign_helpers

[x86/Linux] Fix stack alignment in helper stub

Commit migrated from https://github.com/dotnet/coreclr/commit/eae0a0cf6a22bf189844eaf36c773dd0c125b27a

Merge pull request dotnet/coreclr#9543 from mskvortsov/fix-9536

[Windows/Arm32] Fix a build break

Commit migrated from https://github.com/dotnet/coreclr/commit/357f1178c195bb743025d68f1d075793317b5ebf

Remove never defined FEATURE_FUSION

Commit migrated from https://github.com/dotnet/coreclr/commit/b9f410b7b85d3948aece3aa009885df244f11e41

Remove remainder of FEATURE_CORECLR (tool missed some files, also comments)

Commit migrated from https://github.com/dotnet/coreclr/commit/206b6a7efbc2e947eff900f448b86573b77ae392

Comment for Gaurav

Commit migrated from https://github.com/dotnet/coreclr/commit/764b57ba3b7494a8391f32fea688c46247dc9336

Remove never defined FEATURE_CRYPTO

Commit migrated from https://github.com/dotnet/coreclr/commit/b19c2192fb77f7a9488426520857740c59ffaf2a

Remove never defined FEATURE_COMPRESSEDSTACK

Commit migrated from https://github.com/dotnet/coreclr/commit/527c3a1cbb99c6d9b9f11b250bc73487b2c41120

Remove never defined FEATURE_COMINTEROP_WINRT_DESKTOP_HOST

Commit migrated from https://github.com/dotnet/coreclr/commit/e14f9e5a6eacdc1ae0ff51a23d192cf457f7f5cc

Remove never defined FEATURE_COMINTEROP_TLB_SUPPORT and files that require it to be defined

Commit migrated from https://github.com/dotnet/coreclr/commit/c2ef095b02c2751f304f43d4c529a1fbac6079d2

Remove never defined FEATURE_COMINTEROP_REGISTRATION

Commit migrated from https://github.com/dotnet/coreclr/commit/c9a8100ddeaf106f61bd7837ff17ef2ecc069b0b

Remove never defined FEATURE_CODEPAGES_FILE and file

Commit migrated from https://github.com/dotnet/coreclr/commit/2ae9e448d2746814ec0045713ced712cb556bd1d

Remove never defined FEATURE_CLICKONCE

Commit migrated from https://github.com/dotnet/coreclr/commit/8e07276c8da06900db4f6072197ce7beecc0481e