Remove const qualifier from returnTagsNamesMap()

- No functional effect as ELFExtendedAttrParser holds TagsNamesMap as const.
- Enables RVO optimization (e.g., move instead of copy).

Author: sivan-shani

llvm/include/llvm/Support/AArch64AttributeParser.h

@@ -15,7 +15,7 @@
 namespace llvm {
 
 class AArch64AttributeParser : public ELFExtendedAttrParser {
-  static const std::vector<SubsectionAndTagToTagName> returnTagsNamesMap();
+  static std::vector<SubsectionAndTagToTagName> returnTagsNamesMap();
 
 public:
   AArch64AttributeParser(ScopedPrinter *Sw)

llvm/lib/Support/AArch64AttributeParser.cpp

@@ -9,7 +9,7 @@
 
 #include "llvm/Support/AArch64AttributeParser.h"
 
-const std::vector<llvm::SubsectionAndTagToTagName>
+std::vector<llvm::SubsectionAndTagToTagName>
 llvm::AArch64AttributeParser::returnTagsNamesMap() {
   return {{"aeabi_pauthabi", 1, "Tag_PAuth_Platform"},
           {"aeabi_pauthabi", 2, "Tag_PAuth_Schema"},