[Interpreter] Add BytecodeArray class and add to SharedFunctionInfo.

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 5c6f49927007a008b42ad499f88ad67fc3cd5d5d..b707e269dee082b3b320ef5468b36f836903cfae 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -60,6 +60,7 @@ namespace internal {
   V(Map, function_context_map, FunctionContextMap)                             \
   V(FixedArray, empty_fixed_array, EmptyFixedArray)                            \
   V(ByteArray, empty_byte_array, EmptyByteArray)                               \
+  V(BytecodeArray, empty_bytecode_array, EmptyBytecodeArray)                   \
   V(DescriptorArray, empty_descriptor_array, EmptyDescriptorArray)             \
   /* The roots above this line should be boring from a GC point of view.    */ \
   /* This means they are never in new space and never on a page that is     */ \
@@ -1671,6 +1672,11 @@ class Heap {
   MUST_USE_RESULT AllocationResult
       AllocateByteArray(int length, PretenureFlag pretenure = NOT_TENURED);
 
+  // Allocates a bytecode array with given contents

[rmcilroy, 2015/07/15 13:33:38]

nit - fullstop at the end of the comment.

[oth, 2015/07/16 09:15:50]

Done and renamed 'start' to 'raw_bytecodes'.

+  MUST_USE_RESULT AllocationResult
+  AllocateBytecodeArray(int length, const byte* start,
+                        PretenureFlag pretenure = NOT_TENURED);
+
   // Copy the code and scope info part of the code object, but insert
   // the provided data as the relocation information.
   MUST_USE_RESULT AllocationResult