Add function literal variable to declaration list.

src/scopes.h

Index: src/scopes.h
diff --git a/src/scopes.h b/src/scopes.h
index 9f913450abd9f7f8622ef1b85082bd4c3e43a15b..f9354188bf31e99858e2da0c0696eb5cd049c9da 100644
--- a/src/scopes.h
+++ b/src/scopes.h
@@ -119,6 +119,9 @@ class Scope: public ZoneObject {
   // outer scope. Only possible for function scopes; at most one variable.
   void DeclareFunctionVar(VariableDeclaration* declaration) {
     DCHECK(is_function_scope());
+    // Handle implicit declaration of the function name in named function
+    // expressions before other declarations.
+    decls_.InsertAt(0, declaration, zone());
     function_ = declaration;
   }