|  | // Test this without pch. | 
|  | // RUN: %clang_cc1 -include %S/cxx-namespaces.h -fsyntax-only -verify %s | 
|  |  | 
|  | // Test with pch. | 
|  | // RUN: %clang_cc1 -x c++-header -emit-pch -o %t %S/cxx-namespaces.h | 
|  | // RUN: %clang_cc1 -include-pch %t -fsyntax-only -verify %s | 
|  | // RUN: %clang_cc1 -include-pch %t -fsyntax-only -ast-dump-lookups -ast-dump-filter N %s | FileCheck %s | 
|  |  | 
|  | // Test with modules. | 
|  | // RUN: %clang_cc1 -fmodules -x c++-header -emit-pch -o %t %S/cxx-namespaces.h | 
|  | // RUN: %clang_cc1 -fmodules -include-pch %t -fsyntax-only -verify %s | 
|  | // RUN: %clang_cc1 -fmodules -include-pch %t -fsyntax-only -ast-dump-lookups -ast-dump-filter N %s | FileCheck %s | 
|  |  | 
|  | // expected-no-diagnostics | 
|  |  | 
|  | void m() { | 
|  | N::x = 0; | 
|  | N::f(); | 
|  | } | 
|  |  | 
|  | // namespace 'N' should contain only two declarations of 'f'. | 
|  |  | 
|  | // CHECK:      DeclarationName 'f' | 
|  | // CHECK-NEXT: |-Function {{.*}} 'f' 'void ( | 
|  | // CHECK-NEXT: `-Function {{.*}} 'f' 'void ( |