skia2/tests/sksl/shared/golden/NormalizationGeo.metal

### Compilation failed:

error: 1: Metal uniforms must have 'layout(set=...)'
error: 1: unsupported kind of program
2 errors
Add golden outputs for the Metal backend. This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-09-25 17:35:58 +00:00			`### Compilation failed:`

Fail gracefully when Metal encounters a geometry shader. Change-Id: I452e52a87d89cefb5c21a0d9d57e9771f3038d73 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319783 Commit-Queue: John Stiles <johnstiles@google.com> Commit-Queue: Brian Salomon <bsalomon@google.com> Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Salomon <bsalomon@google.com> 2020-09-25 19:51:28 +00:00			`error: 1: Metal uniforms must have 'layout(set=...)'`
			`error: 1: unsupported kind of program`
			`2 errors`