Make sure idle notifications perform a round of incremental GCs after context disposal.

Make sure idle notifications perform a round of incremental GCs after context disposal.

BUG=v8:2107
Committed: https://code.google.com/p/v8/source/detail?r=11469

[ulan, 2012-04-27 13:30:28]

Please take a look.

http://codereview.chromium.org/10209026/diff/1/src/heap.cc
File src/heap.cc (left):

http://codereview.chromium.org/10209026/diff/1/src/heap.cc#oldcode5063
src/heap.cc:5063: if (!WorthStartingGCWhenIdle()) {
Experiments show that it is better not to finish the idle round too early.

[Erik Corry, 2012-04-27 15:00:35]

LGTM

Is it possible to make some pure-V8 tests that test this?

[ulan, 2012-04-27 15:07:51]

On 2012/04/27 15:00:35, Erik Corry wrote:
> LGTM
> 
> Is it possible to make some pure-V8 tests that test this?
I will try to come up with a test, but my previous attempts to test idle
notifications resulted in very flaky tests.

[ulan, 2012-04-30 14:11:31]

Added a regression test and improved the existing idle notification tests.