NEW179323
[DFG] InternalFunction lowering should be also done after arguments elimination phase 
https://bugs.webkit.org/show_bug.cgi?id=179323
Summary [DFG] InternalFunction lowering should be also done after arguments eliminati...
Yusuke Suzuki
Reported 2017-11-06 09:57:20 PST
Due to the lack of prediction information, we do not inline InternalFunctions in DFGByteCodeParser if it is called in a form of vararg. But this vararg call is sometimes eliminated if argument elimination phase converts Vararg calls to usual calls.
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