Don't require a context for global dynamic variables

src/ast/scopes.cc

Index: src/ast/scopes.cc
diff --git a/src/ast/scopes.cc b/src/ast/scopes.cc
index eb92cefb98f055f12081c00611624944e361c26a..18b21f97e340ad5f880942c619f91b7e52531c7f 100644
--- a/src/ast/scopes.cc
+++ b/src/ast/scopes.cc
@@ -712,7 +712,8 @@ Variable* Scope::DeclareLocal(const AstRawString* name, VariableMode mode,
 Variable* DeclarationScope::DeclareDynamicGlobal(const AstRawString* name,
                                                  Variable::Kind kind) {
   DCHECK(is_script_scope());
-  return Declare(zone(), this, name, DYNAMIC_GLOBAL, kind, kCreatedInitialized);
+  return variables_.Declare(zone(), this, name, DYNAMIC_GLOBAL, kind,
+                            kCreatedInitialized);
 }