Disable path remapping test on Windows.

Author: michaelwoerister

src/test/codegen/remap_path_prefix/main.rs

@@ -8,6 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// ignore-windows
 // ignore-tidy-linelength
 
 // compile-flags: -g  -C no-prepopulate-passes -Zremap-path-prefix-from={{cwd}} -Zremap-path-prefix-to=/the/cwd -Zremap-path-prefix-from={{src-base}} -Zremap-path-prefix-to=/the/src