tree ff18af078691854401ccb85e56d18b61046541af
parent 0e8ee2b668c27cee6708c4ab800acb0f2b598b44
author Alexander Markov <alexmarkov@google.com> 1585791550 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1585791550 +0000

[vm/nnbd] Fix supertype check in GenerateSubtype1TestCacheLookup

Before calling Subtype1TestCache stub, there was a quick check if
supertype's class id matches tested class id.
Null extends Object, so supertype of Null matches Object.
However, in NNBD strong mode Null is not assignable to Object.

Fixes https://github.com/dart-lang/sdk/issues/41272

Change-Id: Icc3efaf90992b5083cbe086af81db7504724b855
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142085
Reviewed-by: Régis Crelier <regis@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>