Attempt to fix Windows buildbot.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@297497 91177308-0d34-0410-b5e6-96231b3b80d8

test/Modules/dependency-dump-dependent-module.m

 // When a module depends on another, check that we dump the dependency header
 // files for both.
 
+// REQUIRES: shell
+
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/cache -module-dependency-dir %t/vfs -F %S/Inputs -I %S/Inputs -verify %s
 // expected-no-diagnostics

test/Modules/dependency-dump.m

 // Check that we can dump all of the headers a module depends on, and a VFS map
 // for the same.
 
+// REQUIRES: shell
+
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/cache -module-dependency-dir %t/vfs -F %S/Inputs -I %S/Inputs -verify %s
 // expected-no-diagnostics