Implement clearing of CompareICs.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 15bdc5221ebf221e1a05c9d7a65a4c268243daa8..922552c10f2fd878a6315f0460acae70b98845c9 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -3191,6 +3191,18 @@ void Code::set_compare_state(byte value) {
 }
 
 
+byte Code::compare_operation() {
+  ASSERT(is_compare_ic_stub());
+  return READ_BYTE_FIELD(this, kCompareOperationOffset);
+}
+
+
+void Code::set_compare_operation(byte value) {
+  ASSERT(is_compare_ic_stub());
+  WRITE_BYTE_FIELD(this, kCompareOperationOffset, value);
+}
+
+
 byte Code::to_boolean_state() {
   ASSERT(is_to_boolean_ic_stub());
   return READ_BYTE_FIELD(this, kToBooleanTypeOffset);