[5.10 🍒][Explicit Modules] Fix detection of a type-checking action in 'ExplicitModuleInterfaceBuilder' #68599
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Cherry-pick of #68598
• Release: Swift 5.10
• Explanation: When we run an interface verification tasks with Explicit module builds, we directly invoke a '-explicit-interface-module-build' instance with a '-typecheck-module-from-interface' action. So the builder needs to recognize this as a typechecking invocation. In implicit builds, this gets lowered into a separate compiler sub-instance with a '-typecheck' action, for some reason.
• Scope of Issue: Clients who disable verification of emitted module interface will still see error diagnostics, instead of expected warnings, from verification jobs.
• Origination: Explicit Module Build feature development recently enabled explicit interface build for Interface verification jobs.
• Reviewed By: @tshortli @xymus @nkcsgexi
• Automated Testing: Test added to the compiler test suite
resolves rdar://115565571