Implement inlining of instanceof tests on ARM.

src/arm/macro-assembler-arm.h

Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 3da8726777b0ad8d858a9d2c53d015879a086094..97bbb2fb678c86d50827b07260e2c100dcd4cd88 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -96,6 +96,7 @@ class MacroAssembler: public Assembler {
   // from the stack, clobbering only the sp register.
   void Drop(int count, Condition cond = al);
 
+  void Ret(int drop, Condition cond = al);
 
   // Swap two registers.  If the scratch register is omitted then a slightly
   // less efficient form using xor instead of mov is emitted.
@@ -298,6 +299,18 @@ class MacroAssembler: public Assembler {
                       const ParameterCount& actual,
                       InvokeFlag flag);
 
+  void IsObjectJSObjectType(Register heap_object,
+                            Register map,
+                            Register scratch,
+                            Label* fail);
+
+  void IsInstanceJSObjectType(Register map,
+                              Register scratch,
+                              Label* fail);
+
+  void IsObjectJSStringType(Register object,
+                            Register scratch,
+                            Label* fail);
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   // ---------------------------------------------------------------------------