[Interpreter] Add support for JS calls.

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 1054a2591574d89fe4cea369bbf202b52486d01c..09fdd5bada4ee6766e09a82293da8bdb2adff930 100644
--- a/src/arm/interface-descriptors-arm.cc
+++ b/src/arm/interface-descriptors-arm.cc
@@ -406,6 +406,18 @@ void MathRoundVariantCallFromOptimizedCodeDescriptor::
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
+
+
+void PushArgsAndCallDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      r0,  // argument count (including receiver)
+      r2,  // address of first argument
+      r1   // the target callable to be call
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 }  // namespace internal
 }  // namespace v8