[Interpreter] Add support for parameter variables.

test/cctest/test-heap.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 652 matching lines @@
   heap->CollectGarbage(OLD_SPACE);
 
   CHECK(WeakPointerCleared);
 }
 
 
 TEST(BytecodeArray) {
   static const uint8_t kRawBytes[] = {0xc3, 0x7e, 0xa5, 0x5a};
   static const int kRawBytesSize = sizeof(kRawBytes);
   static const int kFrameSize = 32;
+  static const int kParameterCount = 2;
 
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   Heap* heap = isolate->heap();
   Factory* factory = isolate->factory();
   HandleScope scope(isolate);
 
   // Allocate and initialize BytecodeArray
-  Handle<BytecodeArray> array =
-      factory->NewBytecodeArray(kRawBytesSize, kRawBytes, kFrameSize);
+  Handle<BytecodeArray> array = factory->NewBytecodeArray(
+      kRawBytesSize, kRawBytes, kFrameSize, kParameterCount);
 
   CHECK(array->IsBytecodeArray());
   CHECK_EQ(array->length(), (int)sizeof(kRawBytes));
   CHECK_EQ(array->frame_size(), kFrameSize);
+  CHECK_EQ(array->parameter_count(), kParameterCount);
   CHECK_LE(array->address(), array->GetFirstBytecodeAddress());
   CHECK_GE(array->address() + array->BytecodeArraySize(),
            array->GetFirstBytecodeAddress() + array->length());
   for (int i = 0; i < kRawBytesSize; i++) {
     CHECK_EQ(array->GetFirstBytecodeAddress()[i], kRawBytes[i]);
     CHECK_EQ(array->get(i), kRawBytes[i]);
   }
 
   // Full garbage collection
   heap->CollectAllGarbage();
@@ skipping 5824 matching lines @@
   {
     SharedFunctionInfo::Iterator iterator(isolate);
     while (iterator.Next()) sfi_count--;
   }
 
   CHECK_EQ(0, sfi_count);
 }
 
 }  // namespace internal
 }  // namespace v8