[TextAPI] Apply NFC code fixups (#88639)

* Remove unnecessary cast
* Annotate `#endif`

Author: cyndyishida

llvm/include/llvm/TextAPI/Utils.h

@@ -21,7 +21,7 @@
 
 #if !defined(PATH_MAX)
 #define PATH_MAX 1024
-#endif
+#endif // !defined(PATH_MAX)
 
 #define MACCATALYST_PREFIX_PATH "/System/iOSSupport"
 #define DRIVERKIT_PREFIX_PATH "/System/DriverKit"

llvm/lib/TextAPI/BinaryReader/DylibReader.cpp

@@ -484,7 +484,7 @@ accumulateLocs(MachOObjectFile &Obj,
     auto Sym = parseSymbol(Name);
 
     if (!File.empty() && Line != 0)
-      LocMap.insert({Sym.Name.str(), RecordLoc(File, Line)});
+      LocMap.insert({Sym.Name, RecordLoc(File, Line)});
   }
 
   return LocMap;