[Webkit-unassigned] [Bug 156611] New: AbstractInterpreter should be more knowledgeable about the delete by id operation.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156611

            Bug ID: 156611
           Summary: AbstractInterpreter should be more knowledgeable about
                    the delete by id operation.
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: keith_miller at apple.com

Currently the AbstractInterpreter assumes that delete will clobber the world. It could notice that for the set of structures that can reach the delete node the identifier to delete will be a miss.

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