[Webkit-unassigned] [Bug 198368] New: [JSC] JSPropertyNameEnumerator and ImmutableButterfly for keys should be discarded eventually

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198368

            Bug ID: 198368
           Summary: [JSC] JSPropertyNameEnumerator and ImmutableButterfly
                    for keys should be discarded eventually
           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: ysuzuki at apple.com

We should mark a flag when it is used. In Full GC, we should mark them only when the flag is marked. And we clear the flag.
I think it works well.

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