Handle missing imports/exports/parts.

sdk/lib/_internal/compiler/implementation/warnings.dart

 // Copyright (c) 2011, 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.
 
 part of dart2js;
 
 /**
  * The messages in this file should meet the following guide lines:
  *
  * 1. The message should start with exactly one of "Error", "Internal error",
@@ skipping 613 matching lines @@
   static const MessageKind IMPORTED_HERE = const MessageKind(
       'Info: "#{element}" is imported here.');
 
   static const MessageKind OVERRIDE_EQUALS_NOT_HASH_CODE = const MessageKind(
       'Hint: The class "#{class}" overrides "operator==", '
       'but not "get hashCode".');
 
   static const MessageKind PACKAGE_ROOT_NOT_SET = const MessageKind(
       'Error: Cannot resolve "#{uri}". Package root has not been set.');
 
+  static const MessageKind INTERNAL_LIBRARY_FROM = const MessageKind(

[ahe, 2013/08/20 10:18:16]

Could you add an example for this as well?

+      'Error: Internal library "#{resolvedUri}" is not accessible from '
+      '"#{importingUri}".');
+
+  static const MessageKind INTERNAL_LIBRARY = const MessageKind(
+      'Error: Internal library "#{resolvedUri}" is not accessible.');

[ahe, 2013/08/20 10:18:16]

Ditto.

+
+  static const MessageKind LIBRARY_NOT_FOUND = const MessageKind(
+      'Error: Library not found "#{resolvedUri}".');

[ahe, 2013/08/20 10:18:16]

Ditto.

+
   static const MessageKind UNSUPPORTED_EQ_EQ_EQ = const MessageKind(
       'Error: "===" is not an operator. '
       'Did you mean "#{lhs} == #{rhs}" or "identical(#{lhs}, #{rhs})"?');
 
   static const MessageKind UNSUPPORTED_BANG_EQ_EQ = const MessageKind(
       'Error: "!==" is not an operator. '
       'Did you mean "#{lhs} != #{rhs}" or "!identical(#{lhs}, #{rhs})"?');
 
   static const MessageKind UNSUPPORTED_THROW_WITHOUT_EXP = const MessageKind(
       'Error: No expression after "throw". '
@@ skipping 91 matching lines @@
       howToFix: "Is '#{name}' spelled right?",
       examples: const [
           """
 // 'addAll' is misspelled.
 @MirrorsUsed(targets: 'dart.core.List.addAl')
 import 'dart:mirrors';
 
 main() {}
 """]);
 
+  static const MessageKind READ_SCRIPT_ERROR = const MessageKind(
+      "Error: Can't read '#{uri}' (#{exception}).",

[ahe, 2013/08/20 10:18:16]

howToFix?

+      examples: const [
+          """
+// 'foo.dart' does not exist.
+import 'foo.dart';
+
+main() {}
+"""]);
+
   static const MessageKind COMPILER_CRASHED = const MessageKind(
       'Error: The compiler crashed when compiling this element.');
 
   static const MessageKind PLEASE_REPORT_THE_CRASH = const MessageKind('''
 The compiler is broken.
 
 When compiling the above element, the compiler crashed. It is not
 possible to tell if this is caused by a problem in your program or
 not. Regardless, the compiler should not crash.
 
@@ skipping 192 matching lines @@
 
 class CompileTimeConstantError extends Diagnostic {
   CompileTimeConstantError(MessageKind kind, Map arguments, bool terse)
     : super(kind, arguments, terse);
 }
 
 class CompilationError extends Diagnostic {
   CompilationError(MessageKind kind, Map arguments, bool terse)
     : super(kind, arguments, terse);
 }