[Webkit-unassigned] [Bug 148179] New: Web Inspector: Named IIFE function + ES6 default parameters in Console crashes WebKit

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=148179

            Bug ID: 148179
           Summary: Web Inspector: Named IIFE function + ES6 default
                    parameters in Console crashes WebKit
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tobi+webkit at basecode.de
                CC: bburg at apple.com, graouts at webkit.org,
                    joepeck at webkit.org, mattbaker at apple.com,
                    nvasilyev at apple.com, timothy at apple.com,
                    webkit-bug-importer at group.apple.com

* Version
WebKit nightly r188633

* SUMMARY
Executing a named IIFE function that uses ES6 default parameters in the console causes a crash.

* STEPS TO REPRODUCE
1. Open Console
2. Execute the following snippet

(function fn(oo = 'test') {
  console.log(oo);
})()

 => Crashes the Browser

* EXPECTATION
Console prints "test"

Interestingly an anonymous function works:

(function(oo = 'test') {
  console.log(oo);
})()

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