[compiler-rt] [compiler-rt][asan] Reland: wcscpy/wcsncpy interceptors and stabilize wchar tests on Darwin/Android (PR #162028)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-ppc64le-linux` running on `ppc64le-sanitizer` while building `compiler-rt` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/15363

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure) (timed out)
...
--------------------------------------------------------------------------

Testing Time: 629.46s

Total Discovered Tests: 4609
  Excluded         : 1983 (43.02%)
  Skipped          :   11 (0.24%)
  Unsupported      :  523 (11.35%)
  Passed           : 2068 (44.87%)
  Expectedly Failed:   24 (0.52%)
command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=2872.850878
Step 9 (test compiler-rt debug) failure: test compiler-rt debug (failure)
...
382.44s: SanitizerCommon-msan-powerpc64le-Linux :: Linux/signal_segv_handler.cpp
372.98s: SanitizerCommon-lsan-powerpc64le-Linux :: Linux/signal_segv_handler.cpp
223.15s: ThreadSanitizer-powerpc64le :: restore_stack.cpp
106.90s: ThreadSanitizer-powerpc64le :: bench_threads.cpp
102.75s: ThreadSanitizer-powerpc64le :: Linux/fork_multithreaded4.cpp
75.39s: ThreadSanitizer-powerpc64le :: deep_stack1.cpp
57.88s: Profile-powerpc64le :: Posix/instrprof-value-prof-shared.test
52.36s: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/ScudoReleaseTest/ReleaseFreeMemoryToOSAndroid
50.42s: SanitizerCommon-tsan-powerpc64le-Linux :: compress_stack_depot.cpp
49.62s: MemorySanitizer-POWERPC64LE :: chained_origin_limits.cpp
44.85s: SanitizerCommon-tsan-powerpc64le-Linux :: Linux/soft_rss_limit_mb_test.cpp
43.60s: ThreadSanitizer-powerpc64le :: signal_thread.cpp
39.27s: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/ScudoReleaseTest/ReleaseFreeMemoryToOSDefault
37.20s: MemorySanitizer-POWERPC64LE :: recover.cpp
35.74s: SanitizerCommon-tsan-powerpc64le-Linux :: max_allocation_size.cpp
35.47s: ThreadSanitizer-powerpc64le :: real_deadlock_detector_stress_test.cpp
34.63s: MemorySanitizer-POWERPC64LE :: stack-origin.cpp
34.28s: MemorySanitizer-POWERPC64LE :: Linux/cmsghdr.cpp

Tests Times:
--------------------------------------------------------------------------
[   Range   ] :: [               Percentage               ] :: [  Count  ]
--------------------------------------------------------------------------
[550s,600s) :: [                                        ] :: [   1/2067]
[500s,550s) :: [                                        ] :: [   0/2067]
[450s,500s) :: [                                        ] :: [   0/2067]
[400s,450s) :: [                                        ] :: [   2/2067]
[350s,400s) :: [                                        ] :: [   1/2067]
[300s,350s) :: [                                        ] :: [   0/2067]
[250s,300s) :: [                                        ] :: [   0/2067]
[200s,250s) :: [                                        ] :: [   1/2067]
[150s,200s) :: [                                        ] :: [   0/2067]
[100s,150s) :: [                                        ] :: [   2/2067]
[ 50s,100s) :: [                                        ] :: [   5/2067]
[  0s, 50s) :: [*************************************** ] :: [2055/2067]
--------------------------------------------------------------------------

Testing Time: 629.46s

Total Discovered Tests: 4609
  Excluded         : 1983 (43.02%)
  Skipped          :   11 (0.24%)
  Unsupported      :  523 (11.35%)
  Passed           : 2068 (44.87%)
  Expectedly Failed:   24 (0.52%)

command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=2872.850878

```

</details>

https://github.com/llvm/llvm-project/pull/162028