tree baac3331abcd739d2532d6936a629360e4849f79
parent 6bf4d2ab1a7e3e2254307de15f36a17509488125
author Dan Rubel <danrubel@google.com> 1544642004 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1544642004 +0000

Add support for simple nullable type return value in generalized function type

This only supports nullable return values of the form

<identifier> '?' 'Function' '(' ...

This is an increment CL in the ongoing effort to add nullable type support
as outlined in https://github.com/dart-lang/language/issues/110

Change-Id: I42febae9f88f7e4d8b05907988deab97c7a7425c
Reviewed-on: https://dart-review.googlesource.com/c/87081
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Dan Rubel <danrubel@google.com>