Run all Swift tests in SwiftSyntax PR testing
Run all Swift tests in SwiftSyntax PR testing

Since we assert that a valid parse of the old parser also results in a valid parse of the new parser, a change in the new parser can break the Swift test suite. We should thus run the test full Swift test suite in SwiftSyntax’s PR testing.

roambotics/swift,apple/swift,apple/swift,roambotics/swift,apple/swift,roambotics/swift,apple/swift,roambotics/swift,apple/swift,roambotics/swift,roambotics/swift,apple/swift