A question about constructor

[NWU_NISL]

#Version：
d940b47

#Testcase:
var f = function (){
    var x = 42; 
    new x(x = function (){});
}; 
f();

#Command:
./webkit/WebKitBuild/Release/bin/jsc testcase.js

#Output:

#Expected output:
TypeError: x is not a constructor

#Description:
When executing the above testcase, other engines threw a TypeError exception, such as v8, spiderMonkey, etc. But JavaScriptCore passed normally without throwing any exceptions.

[Radar WebKit Bug Importer]

<rdar://problem/69977289>

[Yusuke Suzuki]

*** This bug has been marked as a duplicate of bug 220429 ***

[Yusuke Suzuki]

Thanks, this is fixed in bug 220429!