[Webkit-unassigned] [Bug 157120] New: The GetterSetter structure needs a globalObject.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=157120

            Bug ID: 157120
           Summary: The GetterSetter structure needs a globalObject.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mark.lam at apple.com

In r199170: <http://trac.webkit.org/changeset/199170>, GetterSetter was promoted from a JSCell to a JSObject.  JSObject methods expect their structure to have a globalObject.  For example, see JSObject::calculatedClassName().  GetterSetter was previously using a singleton getterSetterStructure owned by the VM.  That singleton getterSetterStructure is not associated with any globalObjects.  As a result, JSObject::calculatedClassName() will run into a null globalObject when it is called on a GetterSetter object.

This patch removes the VM singleton getterSetterStructure, and instead, creates a getterSetterStructure for each JSGlobalObject.

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