Small behavior change: will not check for shader success and program
linking success over the command buffer in a debug build.
Also fail gracefully if stencil renderbuffer allocation fails.
Bug: skia:9938
Bug: chromium:1040186
Change-Id: I623f09d306261d28070078268f6242f92d65fd5f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/273276
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>