[llvm] [ADT] Update hash function of uint64_t for DenseMap (PR #95734)

[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 `llvm` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/235

Here is the relevant piece of the build log for the reference:
```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
files in cache                    719994
cache size                          17.5 GB
max cache size                      20.0 GB
++ CMAKE_COMMON_OPTIONS+=' -DLLVM_CCACHE_BUILD=ON'
++ ld.lld --version
LLD 16.0.1 (compatible with GNU linkers)
++ CMAKE_COMMON_OPTIONS+=' -DLLVM_USE_LINKER=lld'
++ include_config
++ local P=.
++ true
++ local F=./sanitizer_buildbot_config
++ [[ -f ./sanitizer_buildbot_config ]]
++ [[ . -ef / ]]
++ P=./..
++ true
++ local F=./../sanitizer_buildbot_config
++ [[ -f ./../sanitizer_buildbot_config ]]
++ [[ ./.. -ef / ]]
++ P=./../..
++ true
++ local F=./../../sanitizer_buildbot_config
++ [[ -f ./../../sanitizer_buildbot_config ]]
++ [[ ./../.. -ef / ]]
++ P=./../../..
++ true
++ local F=./../../../sanitizer_buildbot_config
++ [[ -f ./../../../sanitizer_buildbot_config ]]
++ [[ ./../../.. -ef / ]]
++ P=./../../../..
++ true
++ local F=./../../../../sanitizer_buildbot_config
++ [[ -f ./../../../../sanitizer_buildbot_config ]]
++ [[ ./../../../.. -ef / ]]
++ P=./../../../../..
++ true
++ local F=./../../../../../sanitizer_buildbot_config
++ [[ -f ./../../../../../sanitizer_buildbot_config ]]
++ [[ ./../../../../.. -ef / ]]
++ P=./../../../../../..
++ true
++ local F=./../../../../../../sanitizer_buildbot_config
++ [[ -f ./../../../../../../sanitizer_buildbot_config ]]
++ [[ ./../../../../../.. -ef / ]]
++ P=./../../../../../../..
++ true
++ local F=./../../../../../../../sanitizer_buildbot_config
++ [[ -f ./../../../../../../../sanitizer_buildbot_config ]]
++ [[ ./../../../../../../.. -ef / ]]
++ break
++ echo @@@BUILD_STEP Info@@@
Step 11 (test compiler-rt debug) failure: test compiler-rt debug (failure)
...
PASS: ThreadSanitizer-powerpc64le :: vptr_harmful_race3.cpp (49 of 2450)
PASS: Profile-powerpc64le :: Posix/instrprof-shared.test (50 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: Linux/process_vm_readv.cpp (51 of 2450)
PASS: MemorySanitizer-Unit :: ./Msan-powerpc64le-Test/255/281 (52 of 2450)
PASS: ThreadSanitizer-powerpc64le :: exceptions.cpp (53 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: no_sanitize_memory_prop.cpp (54 of 2450)
PASS: ThreadSanitizer-powerpc64le :: mutex_destroy_locked2.cpp (55 of 2450)
PASS: ThreadSanitizer-powerpc64le :: mutexset4.cpp (56 of 2450)
PASS: ThreadSanitizer-powerpc64le :: java_race.cpp (57 of 2450)
PASS: XRay-powerpc64le-linux :: TestCases/Posix/func-id-utils.cpp (58 of 2450)
XFAIL: SanitizerCommon-tsan-powerpc64le-Linux :: Linux/signal_line.cpp (59 of 2450)
PASS: Profile-powerpc64le :: Linux/instrprof-dlopen.test (60 of 2450)
PASS: ThreadSanitizer-powerpc64le :: sleep_sync2.cpp (61 of 2450)
PASS: LeakSanitizer-Standalone-powerpc64le :: TestCases/use_stacks.cpp (62 of 2450)
PASS: SanitizerCommon-tsan-powerpc64le-Linux :: Linux/pthread_join.cpp (63 of 2450)
PASS: ThreadSanitizer-powerpc64le :: cond_race.cpp (64 of 2450)
PASS: ThreadSanitizer-powerpc64le :: longjmp4.cpp (65 of 2450)
PASS: ThreadSanitizer-powerpc64le :: suppressions_race.cpp (66 of 2450)
PASS: LeakSanitizer-Standalone-powerpc64le :: TestCases/register_root_region.cpp (67 of 2450)
PASS: ThreadSanitizer-powerpc64le :: race_on_heap.cpp (68 of 2450)
PASS: SanitizerCommon-lsan-powerpc64le-Linux :: symbolize_pc_inline.cpp (69 of 2450)
PASS: ThreadSanitizer-powerpc64le :: mutexset2.cpp (70 of 2450)
PASS: ThreadSanitizer-powerpc64le :: aligned_vs_unaligned_race.cpp (71 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: dso-origin.cpp (72 of 2450)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: hard_rss_limit_mb_test.cpp (73 of 2450)
PASS: ThreadSanitizer-powerpc64le :: tls_race.cpp (74 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: dtor-multiple-inheritance.cpp (75 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: getaddrinfo-positive.cpp (76 of 2450)
PASS: SanitizerCommon-tsan-powerpc64le-Linux :: Linux/symbolize_stack_fp.cpp (77 of 2450)
PASS: ThreadSanitizer-powerpc64le :: simple_race.cpp (78 of 2450)
PASS: ThreadSanitizer-powerpc64le :: malloc_stack.cpp (79 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: Linux/glob_altdirfunc.cpp (80 of 2450)
PASS: ThreadSanitizer-powerpc64le :: Linux/mutex_robust2.cpp (81 of 2450)
PASS: ThreadSanitizer-powerpc64le :: thread_leak3.c (82 of 2450)
PASS: ThreadSanitizer-powerpc64le :: fd_stdout_race.cpp (83 of 2450)
PASS: ThreadSanitizer-powerpc64le :: java_symbolization_legacy.cpp (84 of 2450)
PASS: LeakSanitizer-Standalone-powerpc64le :: TestCases/Linux/log-path_test.cpp (85 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: iconv.cpp (86 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: Linux/b64.cpp (87 of 2450)
PASS: ScudoStandalone-Unit :: ./ScudoUnitTest-powerpc64le-Test/93/267 (88 of 2450)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Posix/qsort.cpp (89 of 2450)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Posix/getpw_getgr.cpp (90 of 2450)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Linux/aligned_alloc-alignment.cpp (91 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: ifaddrs.cpp (92 of 2450)
PASS: SanitizerCommon-msan-powerpc64le-Linux :: Posix/setvbuf.cpp (93 of 2450)
PASS: ThreadSanitizer-powerpc64le :: mmap_stress2.cpp (94 of 2450)
PASS: ThreadSanitizer-powerpc64le :: ignore_lib0.cpp (95 of 2450)
PASS: SanitizerCommon-tsan-powerpc64le-Linux :: get_allocated_begin.cpp (96 of 2450)
PASS: MemorySanitizer-POWERPC64LE :: realloc-origin.cpp (97 of 2450)

```

https://github.com/llvm/llvm-project/pull/95734