Support enabling of type inference with useKernel

tests/compiler/dart2js/jumps/jump_test.dart

Index: tests/compiler/dart2js/jumps/jump_test.dart
diff --git a/tests/compiler/dart2js/jumps/jump_test.dart b/tests/compiler/dart2js/jumps/jump_test.dart
index 1f9263553d29f777bc69b98a12bb450616357389..264a1afafe4e4acf9fa10f389765fd0ecd9fe745 100644
--- a/tests/compiler/dart2js/jumps/jump_test.dart
+++ b/tests/compiler/dart2js/jumps/jump_test.dart
@@ -4,6 +4,7 @@
 
 import 'dart:io';
 import 'package:async_helper/async_helper.dart';
+import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/common.dart';
 import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/diagnostics/diagnostic_listener.dart';
@@ -21,7 +22,8 @@ import 'package:kernel/ast.dart' as ir;
 main() {
   asyncTest(() async {
     Directory dataDir = new Directory.fromUri(Platform.script.resolve('data'));
-    await checkTests(dataDir, computeJumpsData, computeKernelJumpsData);
+    await checkTests(dataDir, computeJumpsData, computeKernelJumpsData,
+        options: [Flags.disableTypeInference]);
   });
 }