Use the correct set of reserved identifiers in pub validations.

utils/pub/validator/name.dart

Index: utils/pub/validator/name.dart
diff --git a/utils/pub/validator/name.dart b/utils/pub/validator/name.dart
index 2ad4bc9faa00ac7eaf4b18009716758f78e2a369..249a0c9ee76e2907d4c700d9e2424c0e296d9066 100644
--- a/utils/pub/validator/name.dart
+++ b/utils/pub/validator/name.dart
@@ -16,9 +16,10 @@ import '../validator.dart';
 
 /// Dart reserved words, from the Dart spec.
 final _RESERVED_WORDS = [
-  "abstract", "as", "dynamic", "export", "external", "factory", "get",
-  "implements", "import", "library", "operator", "part", "set", "static",
-  "typedef"
+  "assert", "break", "case", "catch", "class", "const", "continue", "default",
+  "do", "else", "extends", "false", "final", "finally", "for", "if", "in", "is",
+  "new", "null", "return", "super", "switch", "this", "throw", "true", "try",
+  "var", "void", "while", "with"
 ];
 
 /// A validator that validates the name of the package and its libraries.