Remove default isolate usage from almost all tests

Remove default isolate usage from almost all tests

R=svenpanne@chromium.org
BUG=

Committed: https://code.google.com/p/v8/source/detail?r=16809

[Sven Panne, 2013-09-19 06:42:36]

lgtm

https://codereview.chromium.org/24220003/diff/1/src/api.cc
File src/api.cc (left):

https://codereview.chromium.org/24220003/diff/1/src/api.cc#oldcode5427
src/api.cc:5427: i::Isolate::EnsureDefaultIsolate();
Let's hope that there are no arcane assumptions in our embedders relying on
this... :-}

[dcarney, 2013-09-19 07:34:04]

Committed patchset #1 manually as r16809 (presubmit successful).

[marja, 2013-12-02 15:40:45]

https://codereview.chromium.org/24220003/diff/1/test/cctest/test-debug.cc
File test/cctest/test-debug.cc (right):

https://codereview.chromium.org/24220003/diff/1/test/cctest/test-debug.cc#new...
test/cctest/test-debug.cc:7553: v8::Debug::SetLiveEditEnabled(false),
env->GetIsolate();
FYI, I'm fixing the C++ misuse of this old CL here:
https://codereview.chromium.org/99043004

<3 the accidental comma operator...