@ApiStatus.Experimental
  public static @NotNull GroovyControlFlow buildFlatControlFlow(@NotNull GroovyPsiElement scope) {
    return new ControlFlowBuilder(GrResolverPolicy.getInstance(), true).doBuildFlatControlFlow(scope);
  }
@ApiStatus.Experimental
  public static @NotNull GroovyControlFlow buildFlatControlFlow(@NotNull GroovyPsiElement scope)