Implement type inference for asserts in constructor initializers.

pkg/analyzer/test/src/task/strong/front_end_inference_test.dart

Index: pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
diff --git a/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart b/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
index bb6fa56936a9cff5d87a5108e1d71c1bcfb9e93e..9d41aeebea4d97868622ccc4b74cb6d25273b279 100644
--- a/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
+++ b/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
@@ -12,6 +12,7 @@ import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/analysis/driver.dart';
+import 'package:analyzer/src/generated/engine.dart' show AnalysisOptionsImpl;
 import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
@@ -133,6 +134,10 @@ class _ElementNamer {
 }
 
 class _FrontEndInferenceTest extends BaseAnalysisDriverTest {
+  @override
+  AnalysisOptionsImpl createAnalysisOptions() =>
+      super.createAnalysisOptions()..enableAssertInitializer = true;
+
   Future<String> runTest(String path, String code) {
     return fasta.CompilerContext.runWithDefaultOptions((_) async {
       Uri uri = provider.pathContext.toUri(path);