[clang] Support MemProf on darwin (PR #69640)

[Teresa Johnson via cfe-commits]

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@@ -747,8 +749,10 @@ endif()
 
 if (OS_NAME MATCHES "Linux|FreeBSD|Windows|NetBSD|SunOS")
   set(COMPILER_RT_ASAN_HAS_STATIC_RUNTIME TRUE)
+  set(COMPILER_RT_MEMPROF_HAS_STATIC_RUNTIME TRUE)
 else()
   set(COMPILER_RT_ASAN_HAS_STATIC_RUNTIME FALSE)
+  set(COMPILER_RT_MEMPROF_HAS_STATIC_RUNTIME TRUE)
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teresajohnson wrote:

Is this meant to be FALSE? Otherwise this new variable is always TRUE.

https://github.com/llvm/llvm-project/pull/69640