Implement new stacktrace and deoptimization stress testing flags:

Implement new stacktrace and deoptimization stress testing flags:

--deoptimize-every=N
--deoptimize-filter=FunctionName
--stacktrace-every=N
--stacktrace-filter=FunctionName

Add a word of stack_overflow_flags to the Isolate.  Use a bit in this
word to indicate whether or not a function is being compiler for OSR.
This allows us to distinguish an OSR overflow from a stress-testing
overflow.

BUG=
R=johnmccutchan@google.com, zra@google.com

Committed: https://code.google.com/p/dart/source/detail?r=34887

[turnidge, 2014-04-07 21:27:02]

(Adding zra for mips/arm)

[Cutch, 2014-04-07 23:19:57]

https://codereview.chromium.org/226543007/diff/1/runtime/vm/code_generator.cc
File runtime/vm/code_generator.cc (right):

https://codereview.chromium.org/226543007/diff/1/runtime/vm/code_generator.cc...
runtime/vm/code_generator.cc:1080: if (stack_overflow_flags &
Isolate::kOsrRequest) {
(stack_overflow_flags & Isolate::kOsrRequest) != 0

https://codereview.chromium.org/226543007/diff/1/runtime/vm/intermediate_lang...
File runtime/vm/intermediate_language_ia32.cc (right):

https://codereview.chromium.org/226543007/diff/1/runtime/vm/intermediate_lang...
runtime/vm/intermediate_language_ia32.cc:2600: if
(compiler->ForceSlowPathForStackOverflow()) {
This check is on ia32, x64, and mips but not arm- why?

[zra, 2014-04-07 23:26:02]

arm and mips sequences lgtm

[turnidge, 2014-04-09 17:22:02]

john - PTAL

https://codereview.chromium.org/226543007/diff/1/runtime/vm/code_generator.cc
File runtime/vm/code_generator.cc (right):

https://codereview.chromium.org/226543007/diff/1/runtime/vm/code_generator.cc...
runtime/vm/code_generator.cc:1080: if (stack_overflow_flags &
Isolate::kOsrRequest) {
On 2014/04/07 23:19:57, Cutch wrote:
> (stack_overflow_flags & Isolate::kOsrRequest) != 0

Done.

https://codereview.chromium.org/226543007/diff/1/runtime/vm/intermediate_lang...
File runtime/vm/intermediate_language_ia32.cc (right):

https://codereview.chromium.org/226543007/diff/1/runtime/vm/intermediate_lang...
runtime/vm/intermediate_language_ia32.cc:2600: if
(compiler->ForceSlowPathForStackOverflow()) {
On 2014/04/07 23:19:57, Cutch wrote:
> This check is on ia32, x64, and mips but not arm- why?

Good catch.  Thanks.

[Cutch, 2014-04-09 17:23:41]

lgtm

[turnidge, 2014-04-09 18:27:47]

Committed patchset #4 manually as r34887 (presubmit successful).