Doug Gregor f60d17bf3d [Function builders] Use one-way constraints for closure parameters. ...

Introduce one-way constraints for the parameters of closures to which a
function builder is being applied. This was an intended part of the
model when one-way constraints were introduced, but somehow got
missed. This should further break up large constraints systems for
faster solving, and *most likely* won't break much source code in
practice.

Fixes rdar://problem/64231116.

2020-06-10 16:58:03 -07:00

392 KiB

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