Commits
Joe Groff committed 69d33921911
Accept underscore separators in numeric literals. This makes long literals like 1_000_000_000 or 0x7FFF_FFFF_FFFF_FFFF much easier to read, and has precedent in Perl, OCaml, Python, Ruby, Rust, ... Fixes <rdar://problem/14247571>. Swift SVN r6681