Test that SkSTArray and SkTArray classes are compatible.
Test that SkSTArray and SkTArray classes are compatible.

We have the ability to copy or move an SkSTArray into an SkTArray, or
vice versa. However, this was not reflected anywhere in our test
coverage, and not all copy/move paths were exercised on every platform.
This led to a blind spot in our tests, meaning that Skia could
successfully build locally but fail on CQ bots due to SkSTArray usage in
various platform-specific code.

Change-Id: Ie77ccc0a4be5c2a47f1eaa026c910c59d38a3e60
Bug: skia:10891
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/332602
Commit-Queue: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>
Commit-Queue: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>
Reviewed-by: Brian Osman <794c0b5534edf5601d88e1d41975d0262da12894@google.com>
Auto-Submit: John Stiles <f4fcf42d3bb5924557f1eeb3be66747535e585da@google.com>

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