Implement rudimentary module linking.

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index 7c56766a372de987322bb3da4d45967c0747cdcb..0e0ffe924b00c08dd8cf9efae83f7ed93b541015 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -83,7 +83,7 @@ class FullCodeGenerator: public AstVisitor {
         scope_(info->scope()),
         nesting_stack_(NULL),
         loop_depth_(0),
-        globals_(10),
+        globals_(NULL),
         context_(NULL),
         bailout_entries_(info->HasDeoptimizationSupport()
                          ? info->function()->ast_node_count() : 0),
@@ -202,7 +202,7 @@ class FullCodeGenerator: public AstVisitor {
     virtual ~NestedBlock() {}
 
     virtual NestedStatement* Exit(int* stack_depth, int* context_length) {
-      if (statement()->AsBlock()->block_scope() != NULL) {
+      if (statement()->AsBlock()->scope() != NULL) {
         ++(*context_length);
       }
       return previous_;
@@ -778,7 +778,7 @@ class FullCodeGenerator: public AstVisitor {
   Label return_label_;
   NestedStatement* nesting_stack_;
   int loop_depth_;
-  ZoneList<Handle<Object> > globals_;
+  ZoneList<Handle<Object> >* globals_;
   const ExpressionContext* context_;
   ZoneList<BailoutEntry> bailout_entries_;
   ZoneList<BailoutEntry> stack_checks_;