[Interpreter] Support for operator new.

src/mips/interface-descriptors-mips.cc

Index: src/mips/interface-descriptors-mips.cc
diff --git a/src/mips/interface-descriptors-mips.cc b/src/mips/interface-descriptors-mips.cc
index 326d391af4eb7a0aa112ab5f38a8b3fca470c133..024f72c31c42c063572d0dadce2510c1ef1ad4e7 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.cc
@@ -395,6 +395,18 @@ void InterpreterPushArgsAndCallDescriptor::InitializePlatformSpecific(
 }
 
 
+void InterpreterPushArgsAndConstructDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      a0,  // argument count (not including receiver)
+      a3,  // original constructor
+      a1,  // constructor to call
+      a2   // address of the first argument
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+
 void InterpreterCEntryDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {