Implement inlining of instanceof tests on ARM.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 90899430c25283f83710ae6c38ec50a2d5c9beab..dfc48917da603daf2091d57ee19b19fee6fee572 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1337,7 +1337,14 @@ void LCodeGen::DoCmpMapAndBranch(LCmpMapAndBranch* instr) {
 
 
 void LCodeGen::DoInstanceOf(LInstanceOf* instr) {
-  Abort("DoInstanceOf unimplemented.");
+  // We expect object and function in registers r1 and r0.
+  InstanceofStub stub(InstanceofStub::kArgsInRegisters);
+  CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+
+  Label true_value, done;
+  __ tst(r0, r0);
+  __ mov(r0, Operand(Factory::false_value()), LeaveCC, eq);
+  __ mov(r0, Operand(Factory::true_value()), LeaveCC, ne);
 }