8245283: JFR: Can't handle constant dynamic used by Jacoco agent

Reviewed-by: mgronlun

src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp

@@ -683,6 +683,10 @@ static u2 position_stream_after_cp(const ClassFileStream* stream) {
         }
       }
       continue;
+      case JVM_CONSTANT_Dynamic:
+        stream->skip_u2_fast(1);
+        stream->skip_u2_fast(1);
+      continue;
       default:
         assert(false, "error in skip logic!");
         break;