gfx/wr/webrender/tests

Name	Description	Size	Coverage
angle_shader_validation.rs		3038	-
gl_leaks.rs	Guards against OpenGL knowledge leaking out of the GL backend. Scans the crate for references to `gleam` or the `gl::` module outside `src/device/gl.rs`. Files that still have them must be listed in `ALLOWLIST`. A stale entry fails the test too, so the list only shrinks.	3873	-