tree 2ab2f800189122d98b516d743c15c9660ee545bc
parent 2aca81450df7300c8b370511c65e8b91bb55bae3
author Kevin Millikin <kmillikin@google.com> 1535015493 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1535015493 +0000

Simplify ClosureContext

There are some invariants about this class and some improvements we
can make:

  * needImplicitDowcasts is always true

  * returnContext is never null so neither is declaredReturnType or
    expectedType

  * ensureAssignable calls greatestClosure on the expected type so we
    don't have to

  * we don't need to unwrap the type of the subexpression unless we
    are inferring a return type based on it

Change-Id: I4eaf41f17dd9d5ad44143a04ef02fe11824b2aa7
Reviewed-on: https://dart-review.googlesource.com/71164
Reviewed-by: Daniel Hillerström <hillerstrom@google.com>
Commit-Queue: Kevin Millikin <kmillikin@google.com>