vm-service: Include bytecode with _RegExp objects.

runtime/observatory/lib/src/service/object.dart

Index: runtime/observatory/lib/src/service/object.dart
diff --git a/runtime/observatory/lib/src/service/object.dart b/runtime/observatory/lib/src/service/object.dart
index f36683b1b67e29698b0f152226d4fc51da2bc003..07970072c01e48b8f475a2f4934daab3fa4a69f8 100644
--- a/runtime/observatory/lib/src/service/object.dart
+++ b/runtime/observatory/lib/src/service/object.dart
@@ -2323,6 +2323,8 @@ class Instance extends HeapObject {
   @observable Function twoByteFunction;  // If a RegExp.
   @observable Function externalOneByteFunction;  // If a RegExp.
   @observable Function externalTwoByteFunction;  // If a RegExp.
+  @observable Instance oneByteBytecode;  // If a RegExp.
+  @observable Instance twoByteBytecode;  // If a RegExp.
   @observable bool isCaseSensitive;  // If a RegExp.
   @observable bool isMultiLine;  // If a RegExp.
 
@@ -2414,6 +2416,8 @@ class Instance extends HeapObject {
     twoByteFunction = map['_twoByteFunction'];
     externalOneByteFunction = map['_externalOneByteFunction'];
     externalTwoByteFunction = map['_externalTwoByteFunction'];
+    oneByteBytecode = map['_oneByteBytecode'];
+    twoByteBytecode = map['_twoByteBytecode'];
 
     nativeFields = map['_nativeFields'];
     fields = map['fields'];