Fix building of parameter descriptors from Kernel

runtime/vm/kernel_to_il.cc

 // 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.
 
 #include <set>
 
 #include "vm/kernel_to_il.h"
 
 #include "vm/compiler.h"
 #include "vm/intermediate_language.h"
@@ skipping 6760 matching lines @@
   } else {
     Thread* thread = Thread::Current();
     Error& error = Error::Handle();
     error = thread->sticky_error();
     thread->clear_sticky_error();
     return error.raw();
   }
 }
 
 
-RawObject* BuildParameterDescriptor(TreeNode* const kernel_node) {
+RawObject* BuildParameterDescriptor(const Function& function) {
   LongJumpScope jump;
   if (setjmp(*jump.Set()) == 0) {
+    TreeNode* kernel_node =
+        reinterpret_cast<TreeNode*>(function.kernel_function());
     FunctionNode* function_node = NULL;
-
     if (kernel_node->IsProcedure()) {
       function_node = Procedure::Cast(kernel_node)->function();
     } else if (kernel_node->IsConstructor()) {
       function_node = Constructor::Cast(kernel_node)->function();
     } else if (kernel_node->IsFunctionNode()) {
       function_node = FunctionNode::Cast(kernel_node);
     } else {
       UNIMPLEMENTED();
       return NULL;
     }
 
     Thread* thread = Thread::Current();
     Zone* zone_ = thread->zone();
-    TranslationHelper translation_helper(thread);
-    DartTypeTranslator type_translator(&translation_helper, NULL, true);
+    TranslationHelper helper(thread);
+    Script& script = Script::Handle(Z, function.script());
+    helper.SetStringOffsets(
+        TypedData::Handle(Z, script.kernel_string_offsets()));
+    helper.SetStringData(TypedData::Handle(Z, script.kernel_string_data()));
+    DartTypeTranslator type_translator(&helper, NULL, true);
     ConstantEvaluator constant_evaluator(/* flow_graph_builder = */ NULL, Z,
-                                         &translation_helper, &type_translator);
+                                         &helper, &type_translator);
 
     const intptr_t positional_count =
         function_node->positional_parameters().length();
     const intptr_t param_count =
         positional_count + function_node->named_parameters().length();
     const Array& param_descriptor = Array::Handle(
         Array::New(param_count * Parser::kParameterEntrySize, Heap::kOld));
     for (intptr_t i = 0; i < param_count; ++i) {
       const intptr_t entry_start = i * Parser::kParameterEntrySize;
 
@@ skipping 30 matching lines @@
     thread->clear_sticky_error();
     return error.raw();
   }
 }
 
 
 }  // namespace kernel
 }  // namespace dart
 
 #endif  // !defined(DART_PRECOMPILED_RUNTIME)