test windows panic message

Author: RalfJung

tests/compile-fail/panic/windows.rs

@@ -0,0 +1,9 @@
+// ignore-linux
+// ignore-macos
+
+// Test that panics on Windows give a reasonable error message.
+
+// error-pattern: panicking is not supported on this platform
+fn main() {
+    panic!("this is Windows");
+}