Defines the %target-playground-build-run-swift macro in the local lit config for PlaygroundTransform which contains all the boilerplate code used by most PlaygroundTransform tests:
* Build a PlaygroundSupport module
* Build the test source into an executable, linking PlaygroundSupport
* Codesign and run the executable
The `-force-single-frontend-invocation` flag predates WMO and is now an
alias for `-whole-module-optimization`. We should use the latter and let
the former fade into history.
This change PCMacro and PlaygroundTransform to return an a moduleID and
fileID in addition to the source location information. The Frontend has
been changed to run PCMacro and PlaygroundTransform on all input files
instead of the main file only.
The tests have been updated to conform to these changes with an addition
of module and file ID specific tests. The Playgrounds related tests were
adjusted to make a module out of the stub interface files since those
files should not have PCMacro and PlaygroundTransform applied to them.
rdar://problem/50821146
Currently, the playground transform requires the use of dollar-identifiers as the functions are prefixed with "$builtin".
This commit removes that requirement by replacing "$builtin" with "__builtin".
This aligns with the PC macro.
This addresses <rdar://problem/36031860>.
Since both in-tree AST transforms (playground and program counter) add
new ApplyExprs (and literals that turn into ApplyExprs), we need to
recheck nested function bodies as well as top-level ones.
rdar://problem/28784059
