BranchIfNonSymbol 4648 src/ia32/code-stubs-ia32.cc void CompareStub::BranchIfNonSymbol(MacroAssembler* masm, BranchIfNonSymbol 3656 src/x64/code-stubs-x64.cc void CompareStub::BranchIfNonSymbol(MacroAssembler* masm,