PR #23687 Fix the evil fallthrough bug

[ast] Add helpers for grabbing various case stmt corresponding var decls to a specific case stmt var decl.

gottesmm committed 6 years ago

[ast] Add a helper method for checking if a pattern contains a var decl and adopt it.

gottesmm committed 6 years ago

[ast][silgen] Wire up the case body var decls and use them in SILGenPattern emission to fix the evil fallthrough bug.

gottesmm committed 6 years ago

swift Fix the evil fallthrough bug #23687 Merged