Associate the correct type to method receivers (instead of Dynamic type).

runtime/vm/code_descriptors_test.cc

Index: runtime/vm/code_descriptors_test.cc
===================================================================
--- runtime/vm/code_descriptors_test.cc	(revision 10199)
+++ runtime/vm/code_descriptors_test.cc	(working copy)
@@ -24,13 +24,13 @@
 CODEGEN_TEST_GENERATE(StackmapCodegen, test) {
   Assembler assembler;
   const String& function_name = String::ZoneHandle(Symbols::New("test"));
+  Class& cls = Class::ZoneHandle();
+  const Script& script = Script::Handle();
+  cls = Class::New(function_name, script, Scanner::kDummyTokenIndex);
   const Function& function = Function::Handle(
       Function::New(function_name, RawFunction::kRegularFunction,
-                    true, false, false, false, 0));
+                    true, false, false, false, cls, 0));
   function.set_result_type(Type::Handle(Type::DynamicType()));
-  Class& cls = Class::ZoneHandle();
-  const Script& script = Script::Handle();
-  cls = Class::New(function_name, script, Scanner::kDummyTokenIndex);
   const Array& functions = Array::Handle(Array::New(1));
   functions.SetAt(0, function);
   cls.SetFunctions(functions);