Hide names of internal classes from the user by mapping them to the documented

runtime/vm/flow_graph_builder.cc

 // Copyright (c) 2012, 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 "vm/flow_graph_builder.h"
 
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/code_descriptors.h"
 #include "vm/dart_entry.h"
@@ skipping 413 matching lines @@
   }
 
   const bool eliminated = IsStaticTypeMoreSpecific(value, dst_type);
   if (FLAG_eliminate_type_checks && FLAG_trace_type_check_elimination) {
     const Class& cls = Class::Handle(
         owner()->parsed_function().function().owner());
     const Script& script = Script::Handle(cls.script());
     const char* static_type_name = "unknown";
     if (value != NULL) {
       const AbstractType& type = AbstractType::Handle(value->StaticType());
-      static_type_name = String::Handle(type.Name()).ToCString();
+      static_type_name = String::Handle(type.UserVisibleName()).ToCString();
     }
     Parser::PrintMessage(script, token_pos, "",
                          "%s type check: static type '%s' is %s specific than "
                          "type '%s' of '%s'.",
                          eliminated ? "Eliminated" : "Generated",
                          static_type_name,
                          eliminated ? "more" : "not more",
-                         String::Handle(dst_type.Name()).ToCString(),
+                         String::Handle(dst_type.UserVisibleName()).ToCString(),
                          dst_name.ToCString());
   }
   return eliminated;
 }
 
 
 // <Expression> :: Assignable { expr:     <Expression>
 //                              type:     AbstractType
 //                              dst_name: String }
 void EffectGraphVisitor::VisitAssignableNode(AssignableNode* node) {
@@ skipping 2218 matching lines @@
   char* chars = reinterpret_cast<char*>(
       Isolate::Current()->current_zone()->Allocate(len));
   OS::SNPrint(chars, len, kFormat, function_name, reason);
   const Error& error = Error::Handle(
       LanguageError::New(String::Handle(String::New(chars))));
   Isolate::Current()->long_jump_base()->Jump(1, error);
 }
 
 
 }  // namespace dart