Commits
Joe Groff committed 7b0045c790d
Introduce a "@box T" type for SIL. Represents a heap allocation containing a value of type T, which we'll be able to use to represent the payloads of indirect enum cases, and also improve codegen of current boxes, which generates non-uniqued box metadata on every allocation, which is dumb. No codegen changes or IRGen support yet; that will come later. Swift SVN r29474