[compiler-rt] [sanitizer-common] [Darwin] Fix overlapping dyld segment addresses (PR #166005)

[Andrew Haberlandt via llvm-commits]

ndrewh wrote:

I re-did the verification on top of `DumpListOfModules()` (rather than `Next()`) so that this could be a static function. This gets around the issue with accessing the private `data_` member of `MemoryMappedSegment`.

https://github.com/llvm/llvm-project/pull/166005