[pull] master from apple:master#19

Merged

pull[bot] merged 45 commits intoMaxDesiatov:masterfrom

swiftlang:master

Jun 12, 2020

Commits on Jun 2, 2020

Make some PassManager options to accept comma separated values
meg-gupta
committed

Commits on Jun 5, 2020

[SIL] NFC: Shrink SILGlobalVariable by 16 bytes
davezarzycki
committed

Commits on Jun 9, 2020

[SourceKit] Disable labeled trailing closure support except code completion
rintaro
committed

Commits on Jun 10, 2020

[Function builders] Use one-way constraints for closure parameters.
DougGregor
committed

Commits on Jun 11, 2020

Commits on Jun 12, 2020