tree ebcc5fcc0a9cbdcebfa44d2ddf8fa7f7e6c01d65
parent 3f79cb99764d4e7cd3843c2e8bdeef7ac5e94286
author Doug Gregor <dgregor@apple.com> 1537600128 -0700
committer Doug Gregor <dgregor@apple.com> 1537600128 -0700

[Runtime demangler] Mangled extension context doesn’t always have Type.

The demangle tree for an extension type context doesn’t always have a
Type node wrapping it, and that’s okay.