swift

5bcdcd1f - FrontendTool: Stop if SILGen emits diagnostics even when lazy type checking is off

FrontendTool: Stop if SILGen emits diagnostics even when lazy type checking is off We've had several bugs lately where SILGen produces a diagnostic, but the resulting invalid SIL causes crashes further down in the mandatory pipeline. To prevent this from happening, just stop after SILGen if diagnostics were emitted, even if lazy type checking is disabled, because the same rationale applies in either case.