[llvm] [IR] Handle `.__uniq.` in `getGlobalIndentifier` for local linkage objects (PR #98163)

[Ellis Hoag via llvm-commits]

================
@@ -1743,8 +1743,10 @@ class ModuleSummaryIndex {
   }
 
   static std::string getGlobalNameForLocal(StringRef Name, StringRef Suffix) {
+    if (Name.contains(NameParticles::UniqSuffix))
+      return std::string(Name);
     SmallString<256> NewName(Name);
-    NewName += ".llvm.";
+    NewName += NameParticles::LLVMSuffix;
     NewName += Suffix;
     return std::string(NewName);
----------------
ellishg wrote:

I'm not positive, but I wonder if `Twine` is faster.

```
return (Twine(Name) + NameParticles::LLVMSuffix + Suffix).str();
```

https://github.com/llvm/llvm-project/pull/98163