make -ftime-trace also print template arguments

[llunak]

Summary

Without this, I get e.g. 'PerformPendingInstantiations' -> 'std::fill', now I get 'std::fill<unsigned long *, int>'.

[llunak]

Removed the parse case, getNameForDiagnostic() apparently prints nothing there.

[anton-afanasyev]

LGTM
Thanks!

lib/CodeGen/CodeGenModule.cpp

     if (!shouldEmitFunction(GD))
       return;
 
-    llvm::TimeTraceScope TimeScope(
-        "CodeGen Function", [&]() { return FD->getQualifiedNameAsString(); });
+    llvm::TimeTraceScope TimeScope("CodeGen Function", [&]() {
+      std::string Name;
+      llvm::raw_string_ostream OS(Name);
+      FD->getNameForDiagnostic(OS, getContext().getPrintingPolicy(),
+                               /*Qualified=*/true);
+      return Name;
+    });
 
     if (const auto *Method = dyn_cast<CXXMethodDecl>(D)) {
       // Make sure to emit the definition(s) before we emit the thunks.

lib/Sema/SemaTemplateInstantiate.cpp

     return true;
 
   llvm::TimeTraceScope TimeScope("InstantiateClass", [&]() {
-    return Instantiation->getQualifiedNameAsString();
+    std::string Name;
+    llvm::raw_string_ostream OS(Name);
+    Instantiation->getNameForDiagnostic(OS, getPrintingPolicy(),
+                                        /*Qualified=*/true);
+    return Name;
   });
 
   Pattern = PatternDef;

lib/Sema/SemaTemplateInstantiateDecl.cpp

   }
 
   llvm::TimeTraceScope TimeScope("InstantiateFunction", [&]() {
-    return Function->getQualifiedNameAsString();
+    std::string Name;
+    llvm::raw_string_ostream OS(Name);
+    Function->getNameForDiagnostic(OS, getPrintingPolicy(),
+                                   /*Qualified=*/true);
+    return Name;
   });
 
   // If we're performing recursive template instantiation, create our own