Remove parent_level field of function type parameters.

runtime/vm/precompiler.cc

Index: runtime/vm/precompiler.cc
diff --git a/runtime/vm/precompiler.cc b/runtime/vm/precompiler.cc
index 5a0f88eadc96990026eda32056d4ae4cb8d58c0b..f7b46ed0a6d64fc531b86d3f467ea78c10f60023 100644
--- a/runtime/vm/precompiler.cc
+++ b/runtime/vm/precompiler.cc
@@ -1108,8 +1108,10 @@ void Precompiler::AddConstObject(const Instance& instance) {
         Function::Handle(Z, Closure::Cast(instance).function());
     ASSERT(func.is_static());
     AddFunction(func);
-    AddTypeArguments(
-        TypeArguments::Handle(Z, Closure::Cast(instance).instantiator()));
+    AddTypeArguments(TypeArguments::Handle(
+        Z, Closure::Cast(instance).instantiator_type_arguments()));
+    AddTypeArguments(TypeArguments::Handle(
+        Z, Closure::Cast(instance).function_type_arguments()));
     return;
   }