code: @Nonnull
      public BugInstance addClassAndMethod(MethodGen methodGen, String sourceFile) {
          addClass(methodGen.getClassName());
          addMethod(methodGen, sourceFile);
          if (!MemberUtils.isUserGenerated(methodGen)) {
              foundInAutogeneratedMethod();
          }
          return this;
      }
docs: Add class and method annotations for given method.
  
  @param methodGen
  the method
  @param sourceFile
  source file the method is defined in
  @return this object