Allows bash scripts to share the same name as the directory.
Add fix-tests bash script.
Change-Id: Iaf1943d50ec1fd3f382a2c7823fb7cdd13b1d9a2
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47766
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>