StacktraceTop:
operator! (this=0x4034000c) at ../Source/WTF/wtf/RefPtr.h:66
isEmpty (this=0x4034000c) at ../Source/WebCore/dom/SpaceSplitString.h:116
hasClass (this=0x40340000) at ../Source/WebCore/dom/ElementData.h:107
hasClass (this=0xb94e91b0) at ../Source/WebCore/dom/Element.h:801
nodeMatchesInlined (testNode=0xb94e91b0, this=0x9fba2570) at ../Source/WebCore/dom/ClassNodeList.h:62
StacktraceTop: WTF/wtf/ RefPtr. h:66 WebCore/ dom/SpaceSplitS tring.h: 116 WebCore/ dom/ElementData .h:107 WebCore/ dom/Element. h:801 0xb94e91b0, this=0x9fba2570) at ../Source/ WebCore/ dom/ClassNodeLi st.h:62
operator! (this=0x4034000c) at ../Source/
isEmpty (this=0x4034000c) at ../Source/
hasClass (this=0x40340000) at ../Source/
hasClass (this=0xb94e91b0) at ../Source/
nodeMatchesInlined (testNode=