Fix print-header-json tests failing on Windows because of wrong path separator

Author: sina-mahdavi

clang/test/Preprocessor/print-header-json.c

@@ -27,7 +27,7 @@
 
 // SUPPORTED: {"source":"{{[^,]*}}print-header-json.c","includes":["{{[^,]*}}system0.h","{{[^,]*}}system3.h","{{[^,]*}}system2.h"]}
 // SUPPORTED_PERFILE: {"version":"2.0.0","dependencies":[{"source":"{{[^,]*}}print-header-json.c","includes":[{"location":"{{[^,]*}}print-header-json.c:20:1","file":"{{[^,]*}}system0.h"},{"location":"{{[^,]*}}print-header-json.c:21:1","file":"{{[^,]*}}header0.h"},{"location":"{{[^,]*}}print-header-json.c:22:1","file":"{{[^,]*}}system2.h"}],"imports":[]},{"source":"{{[^,]*}}header0.h","includes":[{"location":"{{[^,]*}}header0.h:1:1","file":"{{[^,]*}}system3.h"},{"location":"{{[^,]*}}header0.h:2:1","file":"{{[^,]*}}header1.h"},{"location":"{{[^,]*}}header0.h:3:1","file":"{{[^,]*}}header2.h"}],"imports":[]}]}
-// SUPPORTED_PERFILE_MODULES: {"version":"2.0.0","dependencies":[{"source":"{{[^,]*}}print-header-json.c","includes":[{"location":"{{[^,]*}}print-header-json.c:20:1","file":"{{[^,]*}}system0.h"}],"imports":[{"location":"{{[^,]*}}print-header-json.c:21:1","module":"module0","file":"{{[^,]*}}print-header-json/module.modulemap"},{"location":"{{[^,]*}}print-header-json.c:22:1","module":"systemmodule0","file":"{{[^,]*}}print-header-json/system/module.modulemap"}]}]}
+// SUPPORTED_PERFILE_MODULES: {"version":"2.0.0","dependencies":[{"source":"{{[^,]*}}print-header-json.c","includes":[{"location":"{{[^,]*}}print-header-json.c:20:1","file":"{{[^,]*}}system0.h"}],"imports":[{"location":"{{[^,]*}}print-header-json.c:21:1","module":"module0","file":"{{[^,]*}}print-header-json{{[\/\\]+}}module.modulemap"},{"location":"{{[^,]*}}print-header-json.c:22:1","module":"systemmodule0","file":"{{[^,]*}}print-header-json{{[\/\\]+}}system{{[\/\\]+}}module.modulemap"}]}]}
 
 // UNSUPPORTED0: error: unsupported combination: -header-include-format=textual and -header-include-filtering=only-direct-system
 // UNSUPPORTED1: error: unsupported combination: -header-include-format=json and -header-include-filtering=none