skia2/tests/sksl/runtime_errors/ReservedNameSamplerExternalOES.skvm

### Compilation failed:

error: 1: expected an identifier, but found type 'samplerExternalOES'
1 error
Mark private types as invalid in the public symbol table. Previously, in public code, private types didn't exist anywhere in the symbol table chain, and those names were free for the taking. Now, we register them as invalid types in the public symbol table. This prevents them from being used as variable names, and gives a more explicit error if you try to use them as a type. Change-Id: I9a943bf923639b72cbf36b1acf4b4fbe70982786 Bug: skia:12538 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/459119 Commit-Queue: John Stiles <johnstiles@google.com> Commit-Queue: Brian Osman <brianosman@google.com> Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com> 2021-10-13 19:04:32 +00:00			`### Compilation failed:`

			`error: 1: expected an identifier, but found type 'samplerExternalOES'`
			`1 error`