Isolate exceptions when evaluating javascript code from C++. Evaluating a script that throws an uncaught exception should not interfere with evaluating other code from C++ when the call to evaluate returns.
Isolate exceptions when evaluating javascript code from C++.
Evaluating a script that throws an uncaught exception should not
interfere with evaluating other code from C++ when the call to
evaluate returns.

I put indentical code in the V8Bridge a while ago and it seems to have
been lost in the unforking process.

BUG=4336
BUG=7773
BUG=8007
R=kasperl@chromium.org
Review URL: http://codereview.chromium.org/27326

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@10697 0039d316-1c4b-4281-b951-d872f2087c98

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