Merge pull request swiftlang#78921 from etcwilde/ewilde/reenable-new-stdlib-build

Enable new stdlib build in macOS smoke tests

Author: etcwilde

utils/build-presets.ini

@@ -669,8 +669,7 @@ skip-test-sourcekit-lsp
 skip-test-swiftpm
 skip-test-llbuild
 
-# TODO: Look into why this causes the new test suite to fail to find the concurrency modules
-# swift-cmake-options=-DSWIFT_ENABLE_NEW_RUNTIME_BUILD=YES
+extra-cmake-options=-DSWIFT_ENABLE_NEW_RUNTIME_BUILD=YES
 
 [preset: buildbot_incremental,tools=RA,stdlib=RD,smoketest=macosx,flto]
 mixin-preset=buildbot_incremental,tools=RA,stdlib=RD,smoketest=macosx