[clang] Use operator==(StringRef, StringRef) (NFC) (llvm#92708)

Author: kazutakahirata

clang-tools-extra/modularize/ModularizeUtilities.cpp

@@ -435,11 +435,9 @@ static std::string replaceDotDot(StringRef Path) {
   llvm::sys::path::const_iterator B = llvm::sys::path::begin(Path),
     E = llvm::sys::path::end(Path);
   while (B != E) {
-    if (B->compare(".") == 0) {
-    }
-    else if (B->compare("..") == 0)
+    if (*B == "..")
       llvm::sys::path::remove_filename(Buffer);
-    else
+    else if (*B != ".")
       llvm::sys::path::append(Buffer, *B);
     ++B;
   }

clang/lib/Driver/ToolChains/Clang.cpp

@@ -1522,7 +1522,7 @@ static void CollectARMPACBTIOptions(const ToolChain &TC, const ArgList &Args,
       auto isPAuthLR = [](const char *member) {
         llvm::AArch64::ExtensionInfo pauthlr_extension =
             llvm::AArch64::getExtensionByID(llvm::AArch64::AEK_PAUTHLR);
-        return (pauthlr_extension.Feature.compare(member) == 0);
+        return pauthlr_extension.Feature == member;
       };
 
       if (std::any_of(CmdArgs.begin(), CmdArgs.end(), isPAuthLR))

clang/utils/TableGen/ClangAttrEmitter.cpp

@@ -1845,7 +1845,7 @@ static LateAttrParseKind getLateAttrParseKind(const Record *Attr) {
     PrintFatalError(Attr, "Field `" + llvm::Twine(LateParsedStr) +
                               "`should only have one super class");
 
-  if (SuperClasses[0]->getName().compare(LateAttrParseKindStr) != 0)
+  if (SuperClasses[0]->getName() != LateAttrParseKindStr)
     PrintFatalError(Attr, "Field `" + llvm::Twine(LateParsedStr) +
                               "`should only have type `" +
                               llvm::Twine(LateAttrParseKindStr) +