[Webkit-unassigned] [Bug 140864] New: Web Inspector: Change $1, $2, $3, $4 to be about previous result in the REPL, not DOM nodes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=140864

            Bug ID: 140864
           Summary: Web Inspector: Change $1, $2, $3, $4 to be about
                    previous result in the REPL, not DOM nodes
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: timothy at apple.com
                CC: graouts at webkit.org, joepeck at webkit.org,
                    jonowells at apple.com, mattbaker at apple.com,
                    nvasilyev at apple.com, timothy at apple.com,
                    webkit-bug-importer at group.apple.com

Lets change these weird things since no one in my unscientific poll (https://twitter.com/xeenon/status/559388400864591872) uses them.

We should assign previous values a number starting with $1 ($0 will still be the current selected DOM node). Anything not null or undefined (or 0?) should get assigned. If the value (strict equal) has a $n referencing it already, don't make a new one and reuse the previous $n. The $n should be shown to the user in the console for quick at-a-glance reference when typing new expressions.

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