Merge pull request #10287 from rudkx/tweak-migrator-test

Tweak test to make it fail to compile regardless of SE-0110.

Author: rudkx

test/Migrator/Inputs/never_compiles_safely_exits_breaking_code.swift

@@ -1 +1 @@
-func foo(_ f: (Void) -> ()) {}
+func foo(_ f: (Int) -> ()) {}