sort ClassInfo lists by name

[raj.khem]

Summary

sort ClassInfo lists by name as well otherwise, there are instances that are identical in
every other field but not ClassInfo and therefore sort in non-deterministicly.
(which breaks binary and source reproducibility).

This helps in making llvm reproducible

llvm/utils/TableGen/AsmMatcherEmitter.cpp

if (Kind == Token || isUserClass()) {
       llvm_unreachable("Unknown ClassInfoKind");
     }
 
     // FIXME: We should be able to just return false here, as we only need a
     // partial order (we use stable sorts, so this is deterministic) and the
     // name of a class shouldn't be significant. However, some of the backends
     // accidentally rely on this behaviour, so it will have to stay like this
     // until they are fixed.
+    if (ValueName != RHS.ValueName)
         return ValueName < RHS.ValueName;
+    // All else being equal, we should sort by name, for source and binary reproducibility
+    return Name < RHS.Name;
   }
 };
 
 class AsmVariantInfo {
 public:
   StringRef RegisterPrefix;
   StringRef TokenizingCharacters;
   StringRef SeparatorCharacters;