This is a minimal version of https://crrev.com/c/2135642 intended for
backmerges.

Ensure that the interpreter has space for all required registers.

Bug: chromium:1067270
Change-Id: Iefd016b4845fb8698d1e0ef5f6a03df0e66aa576
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2137403
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67013}

It's not sufficient to reset only the modules on the current DFS path.

Bug: chromium:1050164
Change-Id: I00e5e12144ad70ac6371eea5e11590b72feaeecc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2049853
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66229}

This was written before lazy feedback vectors and expects that the
feedback vector is always present. Instead just return undefined and
do nothing if there is no feedback vector.

Change-Id: I1ffddd672576cb794eda2d5922b574a8be65d579
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2007492Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65840}

The fix in https://crrev.com/c/1997135 didn't properly recurse the cache
scope after a with scope, passing the current scope rather than the
original cache scope up the recursion. Now the "use external cache" check
is done in LookupWith (and, analogously, LookupSloppyEval) while passing
the given cache scope through the Lookup recursion.

Fixed: chromium:1041210
Fixed: chromium:1041616
Change-Id: I5ac9ddc6c16d63b59aa034721fccec2f7781c4f8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2000133
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65754}

During conflict detection, we want to early exit the scope loop when we
find a non-conflict, but continue looking at the other declarations in
the scope.

Bug: chromium:1038588
Change-Id: Ia2a19b02222fbd13cec70d3a60d2f5bae4ce245b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1985991
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65602}