Changed statement ZoneList to a ZoneChunkList

src/crankshaft/typing.cc

Index: src/crankshaft/typing.cc
diff --git a/src/crankshaft/typing.cc b/src/crankshaft/typing.cc
index 1215dc25f24b43bcf46104b4e3eae484304f6ab5..2af0492e30ce40e71937f1e1904837713a5c6979 100644
--- a/src/crankshaft/typing.cc
+++ b/src/crankshaft/typing.cc
@@ -114,12 +114,10 @@ void AstTyper::Run() {
   RECURSE(VisitStatements(root_->body()));
 }
 
-
-void AstTyper::VisitStatements(ZoneList<Statement*>* stmts) {
-  for (int i = 0; i < stmts->length(); ++i) {
-    Statement* stmt = stmts->at(i);
-    RECURSE(Visit(stmt));
-    if (stmt->IsJump()) break;
+void AstTyper::VisitStatements(ZoneChunkList<Statement*>* statements) {
+  for (auto statement : *statements) {
+    RECURSE(Visit(statement));
+    if (statement->IsJump()) break;
   }
 }
 
@@ -221,10 +219,10 @@ void AstTyper::VisitSwitchStatement(SwitchStatement* stmt) {
       if (!clause_effects.IsEmpty()) complex_effects = true;
     }
 
-    ZoneList<Statement*>* stmts = clause->statements();
+    ZoneChunkList<Statement*>* stmts = clause->statements();
     RECURSE(VisitStatements(stmts));
     ExitEffects();
-    if (stmts->is_empty() || stmts->last()->IsJump()) {
+    if (stmts->size() == 0 || stmts->back()->IsJump()) {
       local_effects.Alt(clause_effects);
     } else {
       complex_effects = true;