[Webkit-unassigned] [Bug 144456] New: DFG Is<Blah> and TypeOf folding should take advantage of the masquerades-as-undefined watchpoint

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=144456

            Bug ID: 144456
           Summary: DFG Is<Blah> and TypeOf folding should take advantage
                    of the masquerades-as-undefined watchpoint
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fpizlo at apple.com

This would allow us to fold more things.

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