test: Add cases for --castxml-cc-(gnu|msvc) detection

Create dummy gnu-like and msvc-like compiler binaries.  Use them with
the --castxml-cc-<id> options to verify that the preprocessor
definitions and include directories are detected as expected.

1 files changed, 10 insertions, 0 deletions

diff --git a/test/cc-msvc.c b/test/cc-msvc.c
new file mode 100644
index 0000000..8ddbac1
--- /dev/null
+++ b/test/cc-msvc.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main(void)
+{
+  fprintf(stdout,
+    "\n"
+    "#define __cc_msvc__ 1\n"
+    );
+  return 0;
+}