Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects from the C heap when they are no longer needed.
Also delete inactive code breakpoint objects more aggressively.

This should fix the memory leaks reported in #28348.

General cleanup of breakpoint handling code and comments.

BUG=#28348
R=rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/74da383d6fb62288f50f37bf631780e589831d5e

[hausner, 2017-02-09 22:48:29]

Description was changed from

==========
Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects from the C heap when they are no longer needed.
Also delete inactive code breakpoint objects more aggressively.

This should fix the memory leaks reported in #28348.

General cleanup of breakpoint handling code and comments.

BUG=#28348
==========

to

==========
Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects from the C heap when they are no longer needed.
Also delete inactive code breakpoint objects more aggressively.

This should fix the memory leaks reported in #28348.

General cleanup of breakpoint handling code and comments.

BUG=#28348
==========

[hausner, 2017-02-09 22:48:29]

hausner@google.com changed reviewers:
+ rmacnak@google.com

[rmacnak, 2017-02-09 23:37:00]

lgtm

[hausner, 2017-02-10 18:43:29]

Description was changed from

==========
Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects from the C heap when they are no longer needed.
Also delete inactive code breakpoint objects more aggressively.

This should fix the memory leaks reported in #28348.

General cleanup of breakpoint handling code and comments.

BUG=#28348
==========

to

==========
Delete Breakpoint objects, fixing memory leak

Delete Breakpoint objects from the C heap when they are no longer needed.
Also delete inactive code breakpoint objects more aggressively.

This should fix the memory leaks reported in #28348.

General cleanup of breakpoint handling code and comments.

BUG=#28348
R=rmacnak@google.com

Committed:
https://github.com/dart-lang/sdk/commit/74da383d6fb62288f50f37bf631780e589831d5e
==========

[hausner, 2017-02-10 18:43:30]

Committed patchset #2 (id:20001) manually as
74da383d6fb62288f50f37bf631780e589831d5e (presubmit successful).