kReturnTrueFalseObject 2389 src/arm/lithium-codegen-arm.cc       flags | InstanceofStub::kReturnTrueFalseObject);
kReturnTrueFalseObject  457 src/code-stubs.h     return (flags_ & kReturnTrueFalseObject) != 0;
kReturnTrueFalseObject 2208 src/ia32/lithium-codegen-ia32.cc       flags | InstanceofStub::kReturnTrueFalseObject);
kReturnTrueFalseObject 2123 src/mips/lithium-codegen-mips.cc       flags | InstanceofStub::kReturnTrueFalseObject);