@Override
  @NotNull
  public GrLiteral createLiteralValue(@NotNull String value, @NotNull PsiElement context) {
    return (GrLiteral)GroovyPsiElementFactory.getInstance(context.getProject())
      .createExpressionFromText("\"" + StringUtil.escapeStringCharacters(value) + "\"");
  }
@Override
  @NotNull
  public GrLiteral createLiteralValue(@NotNull String value, @NotNull PsiElement context)