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Cherry-pick 01e86f1. rdar://problem/110785576
Backport fix for erroneous CSE of EnumeratorNextUpdateIndexAndMode and HasIndexedProperty rdar://110785576 Reviewed by Michael Saboff, Justin Michaud and Yusuke Suzuki. Backports part of https://commits.webkit.org/263909@main, which prevents erroneous elimination of an EnumeratorNextUpdateIndexAndMode and HasIndexedProperty node pair if they have the same operands. The full commit in 263909@main depends on the existence of DFG tuples, which haven't yet been brought into the security branch, so those parts are omitted from this patch. * Source/JavaScriptCore/dfg/DFGClobberize.h: (JSC::DFG::clobberize): * Source/JavaScriptCore/dfg/DFGHeapLocation.cpp: (WTF::printInternal): * Source/JavaScriptCore/dfg/DFGHeapLocation.h: Canonical link: https://commits.webkit.org/259548.828@safari-7615-branch Canonical link: https://commits.webkit.org/245886.882@safari-7613.4.1.0-branch
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