Fully setup the catch variable for catch scopes

src/ast/scopes.cc

Index: src/ast/scopes.cc
diff --git a/src/ast/scopes.cc b/src/ast/scopes.cc
index eb92cefb98f055f12081c00611624944e361c26a..d5b584baf5fff15050f31dfd726ac5e26f9dc8b2 100644
--- a/src/ast/scopes.cc
+++ b/src/ast/scopes.cc
@@ -183,9 +183,8 @@ Scope::Scope(Zone* zone, const AstRawString* catch_variable_name)
 #ifdef DEBUG
   already_resolved_ = true;
 #endif
-  Variable* variable =
-      variables_.Declare(zone, this, catch_variable_name, VAR, Variable::NORMAL,
-                         kCreatedInitialized);
+  Variable* variable = Declare(zone, this, catch_variable_name, VAR,
+                               Variable::NORMAL, kCreatedInitialized);
   AllocateHeapSlot(variable);
 }