Reduce some match type in inlining to avoid opaque type headaches #20457
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The inliner tries to handle opaque types by replacing prefixes containing them by proxy objects with type aliases. When the type we're mapping is a match type application, this can end up breaking its reduction. Reducing match type applications instead of performing this mapping seems to avoid the issue in practice, but I don't know if it completely solves the problem. Fixes scala#20427.
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The inliner tries to handle opaque types by replacing prefixes containing them by proxy objects with type aliases. When the type we're mapping is a match type application, this can end up breaking its reduction.
Reducing match type applications instead of performing this mapping seems to avoid the issue in practice, but I don't know if it completely solves the problem.
Fixes #20427.