Update cached component type masks on attachment redefinitions Added a new test: WebGL2ValidationStateChangeTest.AttachmentTypeRedefinition Fixed: angleproject:8556 Change-Id: I1535fba5467228076bb79ac2cc5530610d4ec747 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5318735 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Alexey Knyazev <lexa.knyazev@gmail.com>