- Use Tok.isObjCAtKeyword instead of Tok.getIdentifierInfo()->getObjCKeywordID().
   The later fails if the token is not an identifier.
 - Replace tabs with spaces.
 - Various other cleanups.

Patch by Nico Weber!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@45368 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Parse/Parser.cpp b/Parse/Parser.cpp
index 732311d..2e15cbd 100644
--- a/Parse/Parser.cpp
+++ b/Parse/Parser.cpp
@@ -374,8 +374,12 @@
   // ObjC2 allows prefix attributes on class interfaces.
   if (getLang().ObjC2 && Tok.is(tok::at)) {
     SourceLocation AtLoc = ConsumeToken(); // the "@"
-    if (Tok.getIdentifierInfo()->getObjCKeywordID() == tok::objc_interface)
-      return ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes()); 
+    if (!Tok.isObjCAtKeyword(tok::objc_interface)) {
+      Diag(Tok, diag::err_objc_expected_property_attr);//FIXME:better diagnostic
+      SkipUntil(tok::semi); // FIXME: better skip?
+      return 0;
+    }
+    return ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes()); 
   }
   
   // Parse the first declarator.