Enumerate URIs of all types in type errors in order to help the user diagnose

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 "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/compiler.h"
@@ skipping 1666 matching lines @@
 
 
 void EffectGraphVisitor::BuildTypeCast(ComparisonNode* node) {
   ASSERT(Token::IsTypeCastOperator(node->kind()));
   ASSERT(!node->right()->AsTypeNode()->type().IsNull());
   const AbstractType& type = node->right()->AsTypeNode()->type();
   ASSERT(type.IsFinalized() && !type.IsMalformed() && !type.IsMalbounded());
   ValueGraphVisitor for_value(owner());
   node->left()->Visit(&for_value);
   Append(for_value);
-  const String& dst_name = String::ZoneHandle(
-      Z, Symbols::New(Exceptions::kCastErrorDstName));
   if (CanSkipTypeCheck(node->token_pos(),
                        for_value.value(),
                        type,
-                       dst_name)) {
+                       Symbols::InTypeCast())) {
     ReturnValue(for_value.value());
     return;
   }
   PushArgumentInstr* push_left = PushArgument(for_value.value());
   PushArgumentInstr* push_type_args = NULL;
   if (type.IsInstantiated()) {
     push_type_args = PushArgument(BuildNullValue(node->token_pos()));
   } else {
     BuildTypecheckPushArguments(node->token_pos(), &push_type_args);
   }
@@ skipping 2953 matching lines @@
                    Script::Handle(function.script()),
                    function.token_pos(),
                    Report::AtLocation,
                    "FlowGraphBuilder Bailout: %s %s",
                    String::Handle(function.name()).ToCString(),
                    reason);
   UNREACHABLE();
 }
 
 }  // namespace dart