[build] Make it possible to actually build the stdlib with a prebuilt clang#34628

Merged

swift-ci merged 3 commits intoswiftlang:mainfrom

finagolfin:native-clang

Jan 6, 2021

Commits on Dec 13, 2020

Revert "Revert "[build-script] Move --native-{clang,llvm,swift}-tools-path flags into the Python build-script""
finagolfin
committed
[build] Make it possible to actually build the stdlib with a prebuilt clang
finagolfin
committed
[build] Replace SWIFT_CROSS_COMPILING with SWIFT_PREBUILT_CLANG
finagolfin
committed