Found during implementation of COLRv1 fuzzer for FreeType that translate
operation was still missing.
Added a test glyph containing two squares filled with a radial gradient
shifted by dx 128, dy -128 and dx -308, dy 307
combined using a PaintComposite.
Bug: skia:11790
Change-Id: I4cbfe34a111a450777dc2f8fa9d32a405f808a89
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/389116
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>