Start porting ivfsoverlay tests to Windows

Part of PR43272, the changes are:

1. Use @ as the sed pattern delimiter instead of : so that the drive
letter in lit substitutions isn't an issue.

2. Use the %/t and %/S substitutions to get paths with forward slashes
to work around string quoting issues in the yaml file.

3. Replace REQUIRES:shell with XFAIL:windows. These tests should pass on
Windows, but do not for reasons that are not yet understood. We would
like to know if they pass unexpectedly.

I was able to remove the XFAILs from two tests, since they already pass
with my sed fix:
  clang/test/VFS/module_missing_vfs.m
  clang/test/VFS/test_nonmodular.c

Reviewers: amccarth

Differential Revision: https://reviews.llvm.org/D67454

llvm-svn: 371663

1 files changed, 4 insertions, 2 deletions

diff --git a/clang/test/VFS/implicit-include.c b/clang/test/VFS/implicit-include.c
index acf665bee24..682dbea42ce 100644
--- a/clang/test/VFS/implicit-include.c
+++ b/clang/test/VFS/implicit-include.c
@@ -1,6 +1,8 @@
-// RUN: sed -e "s:INPUT_DIR:%S/Inputs:g" -e "s:OUT_DIR:%t:g" %S/Inputs/vfsoverlay.yaml > %t.yaml
+// RUN: sed -e "s@INPUT_DIR@%/S/Inputs@g" -e "s@OUT_DIR@%/t@g" %S/Inputs/vfsoverlay.yaml > %t.yaml
 // RUN: %clang_cc1 -Werror -ivfsoverlay %t.yaml -I %t -include "not_real.h" -fsyntax-only %s
-// REQUIRES: shell
+
+// FIXME: PR43272
+// XFAIL: windows
 
 void foo() {
   bar();