| // RUN: rm -rf %t | 
 | // RUN: mkdir %t | 
 | // RUN: echo 'module a { header "a.h" header "x.h" } module b { header "b.h" }' > %t/modulemap | 
 | // RUN: echo 'extern int t;' > %t/t.h | 
 | // RUN: echo '#include "t.h"' > %t/a.h | 
 | // RUN: echo '#include "t.h"' > %t/b.h | 
 | // RUN: echo '#include "t.h"' > %t/x.h | 
 |  | 
 | // RUN: %clang_cc1 -fmodules -I%t -fmodules-cache-path=%t -fmodule-map-file=%t/modulemap -fmodules-embed-all-files %s -verify | 
 | // | 
 | // RUN: %clang_cc1 -fmodules -I%t -fmodules-embed-all-files %t/modulemap -fmodule-name=a -x c++ -emit-module -o %t/a.pcm | 
 | // RUN: %clang_cc1 -fmodules -I%t -fmodules-embed-all-files %t/modulemap -fmodule-name=b -x c++ -emit-module -o %t/b.pcm | 
 | // FIXME: This test is flaky on Windows because attempting to delete a file | 
 | // after writing it just doesn't seem to work well, at least not in the lit | 
 | // shell. | 
 | // REQUIRES: shell | 
 | // RUN: rm %t/x.h | 
 | // RUN: %clang_cc1 -fmodules -I%t -fmodule-map-file=%t/modulemap -fmodule-file=%t/a.pcm -fmodule-file=%t/b.pcm %s -verify | 
 | #include "a.h" | 
 | char t; // expected-error {{different type}} | 
 | // expected-note@t.h:1 {{here}} | 
 | #include "t.h" | 
 | #include "b.h" | 
 | char t; // expected-error {{different type}} | 
 | // expected-note@t.h:1 {{here}} | 
 |  |