[Webkit-unassigned] [Bug 61014] New: Most built-in properties are not deletable

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=61014

           Summary: Most built-in properties are not deletable
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ggaren at apple.com
                CC: barraclough at apple.com


Our static hash tables don't allow for deleting properties. This is the cause of a bunch of expected failures in LayoutTests/sputnik.

For example:

delete Date.UTC // true
Date.UTC // function UTC() { [native code] }

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