Conditions should not unconditionally evaluate to "TRUE" or to "FALSE"

Author: alexeieleusis

lib/src/rules.dart

@@ -23,6 +23,7 @@ import 'package:linter/src/rules/equals_test_argument_type.dart';
 import 'package:linter/src/rules/overriden_field.dart';
 import 'package:linter/src/rules/hash_and_equals.dart';
 import 'package:linter/src/rules/implementation_imports.dart';
+import 'package:linter/src/rules/invariant_boolean.dart';
 import 'package:linter/src/rules/library_names.dart';
 import 'package:linter/src/rules/library_prefixes.dart';
 import 'package:linter/src/rules/non_constant_identifier_names.dart';
@@ -59,6 +60,7 @@ final Registry ruleRegistry = new Registry()
   ..register(new OverridenField())
   ..register(new HashAndEquals())
   ..register(new ImplementationImports())
+  ..register(new InvariantBoolean())
   ..register(new LibraryNames())
   ..register(new LibraryPrefixes())
   ..register(new NonConstantIdentifierNames())