Preliminary code for block scopes and block contexts.

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 05dd5c96619ea25d61feb38d8f54a9834b61f7e7..ee5c37bf081a406cc803df1a9c50a5f556fa3d6c 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -34,6 +34,7 @@
 #include "macro-assembler.h"
 #include "objects.h"
 #include "objects-visiting.h"
+#include "scopeinfo.h"
 
 namespace v8 {
 namespace internal {
@@ -291,6 +292,19 @@ Handle<Context> Factory::NewWithContext(Handle<JSFunction> function,
 }
 
 
+Handle<Context> Factory::NewBlockContext(
+    Handle<JSFunction> function,
+    Handle<Context> previous,
+    Handle<SerializedScopeInfo> scope_info) {
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateBlockContext(*function,
+                                              *previous,
+                                              *scope_info),
+      Context);
+}
+
+
 Handle<Struct> Factory::NewStruct(InstanceType type) {
   CALL_HEAP_FUNCTION(
       isolate(),
@@ -734,6 +748,14 @@ Handle<JSFunction> Factory::NewFunctionWithoutPrototype(Handle<String> name,
 }
 
 
+Handle<SerializedScopeInfo> Factory::NewSerializedScopeInfo(int length) {
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateSerializedScopeInfo(length),
+      SerializedScopeInfo);
+}
+
+
 Handle<Code> Factory::NewCode(const CodeDesc& desc,
                               Code::Flags flags,
                               Handle<Object> self_ref,