Objective-C parsing [qoi]: Provide good recovery when

Objective-C dictionary literals has bad syntax for the
separator. // rdar://10679157

llvm-svn: 179784

clang/lib/Parse/ParseObjc.cpp

@@ -2747,7 +2747,9 @@ ExprResult Parser::ParseObjCDictionaryLiteral(SourceLocation AtLoc) {
     if (Tok.is(tok::colon)) {
       ConsumeToken();
     } else {
-      return ExprError(Diag(Tok, diag::err_expected_colon));
+      Diag(Tok, diag::err_expected_colon);
+      SkipUntil(tok::r_brace);
+      return ExprError();
     }
     
     ExprResult ValueExpr(ParseAssignmentExpression());

clang/test/Parser/objc-boxing.m

@@ -24,3 +24,11 @@ id missing_parentheses() {
     return @(5;             // expected-error {{expected ')'}} \
                             // expected-note {{to match this '('}}
 }
+
+// rdar://10679157
+void bar(id p);
+void foo(id p) {
+        bar(@{p, p}); // expected-error {{expected ':'}}
+        bar(0);
+        bar(0);
+}