Indexer one-shot fast path adjustment

Indexer one-shot fast path adjustment

If the index/key is not a number it is unlikely that the receiver is an Array-like JavaScript object.

This suggests that we should have a version of the one-shot with no fast-path to use at call sites where we can prove the (receiver, argument) combination does not benefit from the fast path.

BUG=
R=sigmund@google.com

Committed: https://github.com/dart-lang/sdk/commit/042fcc9de0df8c196eac43eeb62b5053e2012f0f

[sra1, 2015-12-16 22:44:50]

Description was changed from

==========
Indexer one-shot fast path adjustment

BUG=
==========

to

==========
Indexer one-shot fast path adjustment

If the index/key is not a number it is unlikely that the receiver is an
Array-like JavaScript object.

This suggests that we should have a version of the one-shot with no fast-path to
use at call sites where we can prove the (receiver, argument) combination does
not benefit from the fast path.

BUG=
==========

[sra1, 2015-12-16 22:44:50]

sra@google.com changed reviewers:
+ sigmund@google.com

[Siggi Cherem (dart-lang), 2015-12-16 22:53:12]

lgtm!

[sra1, 2015-12-16 23:07:31]

Description was changed from

==========
Indexer one-shot fast path adjustment

If the index/key is not a number it is unlikely that the receiver is an
Array-like JavaScript object.

This suggests that we should have a version of the one-shot with no fast-path to
use at call sites where we can prove the (receiver, argument) combination does
not benefit from the fast path.

BUG=
==========

to

==========
Indexer one-shot fast path adjustment

If the index/key is not a number it is unlikely that the receiver is an
Array-like JavaScript object.

This suggests that we should have a version of the one-shot with no fast-path to
use at call sites where we can prove the (receiver, argument) combination does
not benefit from the fast path.

BUG=
R=sigmund@google.com

Committed:
https://github.com/dart-lang/sdk/commit/042fcc9de0df8c196eac43eeb62b5053e2012f0f
==========

[sra1, 2015-12-16 23:07:37]

Committed patchset #1 (id:1) manually as
042fcc9de0df8c196eac43eeb62b5053e2012f0f (presubmit successful).