Fix building of parameter descriptors from Kernel

runtime/vm/kernel_to_il.h

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_KERNEL_TO_IL_H_
 #define RUNTIME_VM_KERNEL_TO_IL_H_
 
 #if !defined(DART_PRECOMPILED_RUNTIME)
 
 #include "vm/growable_array.h"
@@ skipping 1122 matching lines @@
  private:
   FlowGraphBuilder* builder_;
   CatchBlock* outer_;
   LocalVariable* exception_var_;
   LocalVariable* stack_trace_var_;
   intptr_t catch_try_index_;
 };
 
 
 RawObject* EvaluateMetadata(const dart::Field& metadata_field);
-RawObject* BuildParameterDescriptor(TreeNode* const kernel_node);
+RawObject* BuildParameterDescriptor(const Function& function);
 
 
 }  // namespace kernel
 }  // namespace dart
 
 #else  // !defined(DART_PRECOMPILED_RUNTIME)
 
 #include "vm/object.h"
 #include "vm/kernel.h"
 
 namespace dart {
 namespace kernel {
 
 RawObject* EvaluateMetadata(const dart::Field& metadata_field);
-RawObject* BuildParameterDescriptor(TreeNode* const kernel_node);
+RawObject* BuildParameterDescriptor(const Function& function);
 
 }  // namespace kernel
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)
 #endif  // RUNTIME_VM_KERNEL_TO_IL_H_