Reviewed by Darin.

        Bug 19346: REGRESSION: Mootools 1.2 Class inheritance broken in post-SquirrelFish merge
        <https://bugs.webkit.org/show_bug.cgi?id=19346>

        A check for whether a function's caller is eval code accidentally included
        the case where the caller's caller is native code. Add a CodeType field to
        CodeBlock and use this for the eval caller test instead.

        JavaScriptCore:

        * VM/CodeBlock.h:
        (KJS::CodeBlock::CodeBlock):
        (KJS::ProgramCodeBlock::ProgramCodeBlock):
        (KJS::EvalCodeBlock::EvalCodeBlock):
        * VM/Machine.cpp:
        (KJS::getCallerFunctionOffset):
        * kjs/nodes.cpp:
        (KJS::FunctionBodyNode::generateCode):
        (KJS::ProgramNode::generateCode):

        LayoutTests:

        * fast/js/function-dot-arguments-and-caller-expected.txt:
        * fast/js/function-dot-arguments-and-caller.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@34457 268f45cc-cd09-0410-ab3c-d52691b4dbfc