Introduce a non-uglified syntax for module imports in Objective-C:

  @import identifier [. identifier]* ;

llvm-svn: 147452
diff --git a/clang/lib/Parse/ParseObjc.cpp b/clang/lib/Parse/ParseObjc.cpp
index 8260d18..a2994a3 100644
--- a/clang/lib/Parse/ParseObjc.cpp
+++ b/clang/lib/Parse/ParseObjc.cpp
@@ -66,6 +66,8 @@
   case tok::objc_dynamic:
     SingleDecl = ParseObjCPropertyDynamic(AtLoc);
     break;
+  case tok::objc_import:
+    return ParseModuleImport(AtLoc);
   default:
     Diag(AtLoc, diag::err_unexpected_at);
     SkipUntil(tok::semi);