[Constraint system] Hoist some common code in matchTypes. #11905
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This may not quite be NFC since the path for Subtype bindings checked other conditions before this, but I believe this is the right thing to do in all cases where we have two identical type vars.
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@swift-ci Please smoke test |
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@xedin is looking at removing the special code for subtype which will make things double-plus awesome. |
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This may not quite be NFC since the path for Subtype bindings checked
other conditions before this, but I believe this is the right thing to
do in all cases where we have two identical type vars.