Fix bug 2907: cannot instantiate Dynamic.

runtime/vm/parser.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/parser.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/compiler_stats.h"
@@ skipping 7654 matching lines @@
       ParseType(ClassFinalizer::kFinalizeWellFormed));
   // Malformed bounds never result in a compile time error, therefore, the
   // parsed type may be malformed although we requested kFinalizeWellFormed.
   // In that case, we throw a dynamic type error instead of calling the
   // constructor.
   if (type.IsTypeParameter()) {
     ErrorMsg(type_pos,
              "type parameter '%s' cannot be instantiated",
              String::Handle(type.Name()).ToCString());
   }
+  if (type.IsDynamicType()) {
+    ErrorMsg(type_pos, "Dynamic cannot be instantiated");
+  }
   Class& type_class = Class::Handle(type.type_class());
   String& type_class_name = String::Handle(type_class.Name());
   AbstractTypeArguments& type_arguments =
       AbstractTypeArguments::ZoneHandle(type.arguments());
 
   // The constructor class and its name are those of the parsed type, unless the
   // parsed type is an interface and a default factory class is specified, in
   // which case constructor_class and constructor_class_name are modified below.
   Class& constructor_class = Class::ZoneHandle(type_class.raw());
   String& constructor_class_name = String::Handle(type_class_name.raw());
@@ skipping 746 matching lines @@
 void Parser::SkipQualIdent() {
   ASSERT(IsIdentifier());
   ConsumeToken();
   if (CurrentToken() == Token::kPERIOD) {
     ConsumeToken();  // Consume the kPERIOD token.
     ExpectIdentifier("identifier expected after '.'");
   }
 }
 
 }  // namespace dart