[llvm] [Symbolizer, DebugInfo] Clean up LLVMSymbolizer API: const string& -> StringRef (PR #104541)

[James Henderson via llvm-commits]

================
@@ -210,7 +208,7 @@ class LLVMSymbolizer {
       ObjectPairForPathArch;
 
   /// Contains parsed binary for each path, or parsing error.
-  std::map<std::string, CachedBinary> BinaryForPath;
+  std::map<std::string, CachedBinary, std::less<>> BinaryForPath;
----------------
jh7370 wrote:

The explicit `std::less<>` doesn't seem like it belongs here?

https://github.com/llvm/llvm-project/pull/104541