[Interpreter] Add CallRuntime support to the interpreter.

src/arm/interface-descriptors-arm.cc

Index: src/arm/interface-descriptors-arm.cc
diff --git a/src/arm/interface-descriptors-arm.cc b/src/arm/interface-descriptors-arm.cc
index aa49843bd05bc25021d0e3a756ffa324409b4059..5dda75236cd706faf5b3617e6486a7ffc0c36c9b 100644
--- a/src/arm/interface-descriptors-arm.cc
+++ b/src/arm/interface-descriptors-arm.cc
@@ -417,16 +417,27 @@ void MathRoundVariantCallFromOptimizedCodeDescriptor::
 }
 
 
-void PushArgsAndCallDescriptor::InitializePlatformSpecific(
+void InterpreterPushArgsAndCallDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
-      r0,  // argument count (including receiver)
+      r0,  // argument count (not including receiver)
       r2,  // address of first argument
       r1   // the target callable to be call
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+
+void InterpreterCEntryDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      r0,  // argument count (argc)
+      r2,  // address of first argument (argv)
+      r1   // the runtime function to call
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 }  // namespace internal
 }  // namespace v8