Move misc clients to IdentifierInfo StringRef API.
 - strcmp -> ==
 - OS.write(II->getName() ...) -> OS << II->getNameStr()
 - Avoid std::string concatenation
 - Use getNameStr().str() when an std::string is really needed.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84437 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PrintPreprocessedOutput.cpp b/lib/Frontend/PrintPreprocessedOutput.cpp
index 492b31a..3883228 100644
--- a/lib/Frontend/PrintPreprocessedOutput.cpp
+++ b/lib/Frontend/PrintPreprocessedOutput.cpp
@@ -399,7 +399,7 @@
     }
 
     if (IdentifierInfo *II = Tok.getIdentifierInfo()) {
-      OS.write(II->getName(), II->getLength());
+      OS << II->getNameStr();
     } else if (Tok.isLiteral() && !Tok.needsCleaning() &&
                Tok.getLiteralData()) {
       OS.write(Tok.getLiteralData(), Tok.getLength());
@@ -434,7 +434,7 @@
   struct SortMacrosByID {
     typedef std::pair<IdentifierInfo*, MacroInfo*> id_macro_pair;
     bool operator()(const id_macro_pair &LHS, const id_macro_pair &RHS) const {
-      return strcmp(LHS.first->getName(), RHS.first->getName()) < 0;
+      return LHS.first->getNameStr() < RHS.first->getNameStr();
     }
   };
 }