skia2/tests/sksl/metal/OutVarsRequireLocation.metal

### Compilation failed:

error: 1: Metal out variables must have 'layout(location=...)'
1 error
Enforce layout(location=...) on Metal out variables. Previously, this would generate invalid code such as `[[user(locn-1)]]`. We now generate a more-useful error at SkSL compilation time. Change-Id: Ifbe335ec6d4abcbdfe89b892ba51063c94d22b11 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339397 Auto-Submit: John Stiles <johnstiles@google.com> Commit-Queue: Ethan Nicholas <ethannicholas@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com> 2020-12-01 15:36:37 +00:00			`### Compilation failed:`

			`error: 1: Metal out variables must have 'layout(location=...)'`
			`1 error`