tree 1ed5dfb398488364274aee52fcb2f7aad42a77f7
parent b36734f4da65b3f35bed4b4e8e88b0921b8c6ca0
author Johnni Winther <johnniwinther@google.com> 1556701114 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1556701114 +0000

Reimplement member usage tracking

We now track member usage in terms of static, dynamic and super access
for reads, writes and invocations. The information collected during
closed world computation is now the basis for the potential member usage
in codegen, thus ensuring that we cannot conclude in codegen that for
instance a field is read dynamically when the closed world knows that
it is never read dynamically.

Closes #36516

Change-Id: I3a1cb87c71268c34bcd67e14a035d9d1be324ab0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100840
Commit-Queue: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>