tree c86a3729728ddb1917596f11d4c836b70568d0f8
parent 4d696edc97971b3ed612393e85ebb6f4bc51109f
author Regis Crelier <regis@google.com> 1617240693 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1617240693 +0000

[VM/runtime] Fix optimization for reusing instantiator type argument vector.

The bit vector representing the nullability of the types of a type argument vector was stored in reverse order.
This caused a problem when a longer instantiated vector is reused for a shorter uninstantiated vector.

This fixes https://github.com/dart-lang/sdk/issues/45529

TEST=added regression test

Change-Id: I0e936e45d51fa896d7562f4f03c8878437eb464f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/193751
Commit-Queue: Régis Crelier <regis@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>