Attributes used for product variants are not supported in name schema generation.

Steps:

1. Create Product Type with attribute and set it as "used for product variants".
2. Use this attribute in Product name pattern and in URL alias name pattern.
3. Create Product using this PT.
4. Publish the product.
5. Generate attribute value.
6. Examine product name and system URL.

Actual result: Attribute is not displayed in name nor in URL.
Expected result: Attributes used for product variants are supported also.