We were allowing these ops on floating point types. The resulting GLSL
would fail to compile. We also allowed >>= and <<= on vectors (but not
any of the other bitwise ops).
The newly added unit tests were failing (eg, not catching errors). New
results are correct.
Bug: skia:10707
Change-Id: I97b769f1ce59261361109a71061b42dc8ef3c74b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317393
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
