Revert "Upgrade V8 to 2.3.7"

This reverts commit 083ee0f8b7a8d98d51bf2debf47d68117f13087f.

V8 build broken on cygwin:
  ./deps/v8/src/handles.h:62: instantiated from `T*
  v8::internal::Handle<T>::operator->() const [with T = v8::internal::Code]'
  ./deps/v8/src/accessors.cc:396: instantiated from here
  ./deps/v8/src/handles-inl.h:50:
  error: call of overloaded `BitCast(v8::internal::Code** const&)' is
  ambiguous
  ./deps/v8/src/utils.h:732: note: candidates are: Dest
  v8::internal::BitCast(const Source&) [with Dest = v8::internal::Code**,
  Source = v8::internal::Code**]
  ./deps/v8/src/utils.h:743:
  note:                 Dest v8::internal::BitCast(Source* const&) [with Dest
  = v8::internal::Code**, Source = v8::internal::Code*]
  scons: *** [obj/release/accessors.o] Error 1

1 files changed, 14 insertions, 16 deletions

diff --git a/deps/v8/include/v8-profiler.h b/deps/v8/include/v8-profiler.h
index 9e3cb873c6..c99eb0d9f8 100644
--- a/deps/v8/include/v8-profiler.h
+++ b/deps/v8/include/v8-profiler.h
@@ -194,10 +194,10 @@ class HeapGraphNode;
 class V8EXPORT HeapGraphEdge {
  public:
   enum Type {
-    kContextVariable = 0,  // A variable from a function context.
-    kElement = 1,          // An element of an array.
-    kProperty = 2,         // A named object property.
-    kInternal = 3          // A link that can't be accessed from JS,
+    CONTEXT_VARIABLE = 0,  // A variable from a function context.
+    ELEMENT = 1,           // An element of an array.
+    PROPERTY = 2,          // A named object property.
+    INTERNAL = 3           // A link that can't be accessed from JS,
                            // thus, its name isn't a real property name.
   };
 
@@ -240,12 +240,12 @@ class V8EXPORT HeapGraphPath {
 class V8EXPORT HeapGraphNode {
  public:
   enum Type {
-    kInternal = 0,   // Internal node, a virtual one, for housekeeping.
-    kArray = 1,      // An array of elements.
-    kString = 2,     // A string.
-    kObject = 3,     // A JS object (except for arrays and strings).
-    kCode = 4,       // Compiled code.
-    kClosure = 5     // Function closure.
+    INTERNAL = 0,   // Internal node, a virtual one, for housekeeping.
+    ARRAY = 1,      // An array of elements.
+    STRING = 2,     // A string.
+    OBJECT = 3,     // A JS object (except for arrays and strings).
+    CODE = 4,       // Compiled code.
+    CLOSURE = 5     // Function closure.
   };
 
   /** Returns node type (see HeapGraphNode::Type). */
@@ -268,15 +268,13 @@ class V8EXPORT HeapGraphNode {
   int GetSelfSize() const;
 
   /** Returns node's network (self + reachable nodes) size, in bytes. */
-  int GetReachableSize() const;
+  int GetTotalSize() const;
 
   /**
-   * Returns node's retained size, in bytes. That is, self + sizes of
-   * the objects that are reachable only from this object. In other
-   * words, the size of memory that will be reclaimed having this node
-   * collected.
+   * Returns node's private size, in bytes. That is, the size of memory
+   * that will be reclaimed having this node collected.
    */
-  int GetRetainedSize() const;
+  int GetPrivateSize() const;
 
   /** Returns child nodes count of the node. */
   int GetChildrenCount() const;