Rangify for loop, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224434 91177308-0d34-0410-b5e6-96231b3b80d8

Author: yrnkrn

lib/Parse/ParseAST.cpp

@@ -146,10 +146,8 @@ void clang::ParseAST(Sema &S, bool PrintStats, bool SkipFunctionBodies) {
   }
 
   // Process any TopLevelDecls generated by #pragma weak.
-  for (SmallVectorImpl<Decl *>::iterator
-       I = S.WeakTopLevelDecls().begin(),
-       E = S.WeakTopLevelDecls().end(); I != E; ++I)
-    Consumer->HandleTopLevelDecl(DeclGroupRef(*I));
+  for (Decl *D : S.WeakTopLevelDecls())
+    Consumer->HandleTopLevelDecl(DeclGroupRef(D));
 
   Consumer->HandleTranslationUnit(S.getASTContext());