Provisional implementation of stack allocated catch variables.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index a6205ecdf5a6de3e10dbd6cd219a6faef1010434..4a7fce112f6fa5d9f031a9e3e5dca668f3bb179f 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -2633,6 +2633,15 @@ void HGraphBuilder::VisitExitContextStatement(ExitContextStatement* stmt) {
 }
 
 
+void HGraphBuilder::VisitExitScopedBlockStatement(
+    ExitScopedBlockStatement* stmt) {
+  ASSERT(!HasStackOverflow());
+  ASSERT(current_block() != NULL);
+  ASSERT(current_block()->HasPredecessor());
+  return Bailout("ExitScopedBlockStatement");
+}
+
+
 void HGraphBuilder::VisitSwitchStatement(SwitchStatement* stmt) {
   ASSERT(!HasStackOverflow());
   ASSERT(current_block() != NULL);
@@ -6224,7 +6233,7 @@ HEnvironment::HEnvironment(HEnvironment* outer,
       pop_count_(0),
       push_count_(0),
       ast_id_(AstNode::kNoNumber) {
-  Initialize(scope->num_parameters() + 1, scope->num_stack_slots(), 0);
+  Initialize(scope->num_parameters() + 1, scope->num_stack_allocs(), 0);
 }