right            4329 src/arm/code-stubs-arm.cc Register InstanceofStub::right() { return r1; }
right            5399 src/ia32/code-stubs-ia32.cc Register InstanceofStub::right() { return edx; }
right            4496 src/mips/code-stubs-mips.cc Register InstanceofStub::right() { return a1; }
right            4423 src/x64/code-stubs-x64.cc Register InstanceofStub::right() { return no_reg; }