This patch adds the validation on the storage texture format declared in
shaders when we create a rendering or compute pipeline with read-only or
write-only storage textures.
This patch also fixes a typo in the TextureValidationTest.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Id302b4b7803d7e03b57c61de1290cc71ba940e2c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16940
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
