@Nullable
      private static ControlFlow createControlFlow(@NotNull PsiCodeBlock block) {
        try {
          return ControlFlowFactory.getInstance(block.getProject())
            .getControlFlow(block, LocalsOrMyInstanceFieldsControlFlowPolicy.getInstance());
        }
        catch (AnalysisCanceledException ignored) {
          return null;
        }
      }
@Nullable
      private static ControlFlow createControlFlow(@NotNull PsiCodeBlock block)