Andi Drebes 5999d402ec enhance(compiler): CompilerEngine: Forward parse errors instead of printing them ...

By default, `mlir::SourceMgrDiagnosticVerifierHandler` used by
`CompilerEngine::compile()` prints parse errors to
`llvm::errs()`. This makes it impossible for a caller of
`CompilerEngine::compile()` to process parse errors or to suppress the
emission of error messages to the standard error stream altogether.

This change captures parse errors in a string via a string-backed
output stream and forwards the error message in the `llvm::Error`
instance of the return value.

2021-11-03 12:05:12 +01:00

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