// RUN:%clang_cc1 %s -verify -fsyntax-only// RUN:%clang_cc1 %s -verify -fsyntax-only -DDECLAREIT// a declaration of NSConstantString is not required.
#ifdef DECLAREIT
@interface NSConstantString;
@end
#endif
id s = @"123"; // simple
id t = @"123" @"456"; // concat
id u = @"123" @ blah; // expected-error{{unexpected token}}