Handle continue and break in for-in and while loops

tests/compiler/dart2js/kernel/compile_from_dill_test.dart

Index: tests/compiler/dart2js/kernel/compile_from_dill_test.dart
diff --git a/tests/compiler/dart2js/kernel/compile_from_dill_test.dart b/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
index 379a16af0cd1f1103aac50cfaaaf72cf6985706f..1526e297c9925f9580f4f05a0a4290e6f629a6b7 100644
--- a/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
+++ b/tests/compiler/dart2js/kernel/compile_from_dill_test.dart
@@ -60,6 +60,17 @@ main() {
     x = i;
     if (i == 5) break;
   }
+  int i = 0;
+  while (i < 10) {
+    if (i == 5) continue;
+    x = i;
+    if (i == 5) break;
+  }
+  for (var v in [3, 5]) {
+    if (v == 5) continue;
+    x = v;
+    if (v == 5) break;
+  }
   print(x);
   return x;
 }