|  | // RUN: rm -rf %t | 
|  | // RUN: mkdir -p %t/Incomplete.framework/Headers | 
|  | // RUN: echo '// IncompleteReal.h' > %t/Incomplete.framework/Headers/IncompleteReal.h | 
|  | // RUN: sed -e "s@INPUT_DIR@%{/S:regex_replacement}/Inputs@g" -e "s@OUT_DIR@%{/t:regex_replacement}@g" %S/Inputs/vfsoverlay.yaml > %t.yaml | 
|  | // RUN: not %clang_cc1 -Werror -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \ | 
|  | // RUN:     -ivfsoverlay %t.yaml -F %t -fsyntax-only %s 2>&1 | FileCheck %s | 
|  |  | 
|  | @import Incomplete; | 
|  | // CHECK: umbrella header for module 'Incomplete' {{.*}}IncompleteVFS.h | 
|  | // CHECK: umbrella header for module 'Incomplete' {{.*}}IncompleteReal.h | 
|  | // CHECK: could not build module 'Incomplete' |