[Webkit-unassigned] [Bug 174516] New: Butterfly storage need not be initialized for indexing type Undecided.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174516

            Bug ID: 174516
           Summary: Butterfly storage need not be initialized for indexing
                    type Undecided.
           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: mark.lam at apple.com

While it's not incorrect to initialize the butterfly storage when the indexingType is Undecided, it is inefficient as we'll end up initializing it again later when we convert the storage to a different indexingType.  Some of our code already skips initializing Undecided butterflies.  This patch makes it the consistent behavior everywhere.

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