Use internal quantizer in Linear module

[ptrendx]

Description

Use internal option in the input quantizer in the Linear module.

Type of change

• [ ] Documentation change (change only to the documentation, either a fix or a new content)
• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Infra/Build change
• [ ] Code refactoring

Changes

Please list the changes introduced in this PR:

• Moved update_usage from *Tensor to *TensorBase (without changes)
• Added is_quantized_tensor function
• Changed the input quantizer to be internal
• (not really related but came about in the testing) Modified the absolute tolerance in the distributed test of FP32 transformer.

Checklist:

• [ ] I have read and followed the contributing guidelines
• [ ] The functionality is complete
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes

[ptrendx]

/te-ci pytorch L1

[ptrendx]

/te-ci

[ptrendx]

/te-ci

[timmoon10]

/te-ci pytorch L1

[timmoon10]

This PR introduced a bug in Thunder's TE executor, which is fixed with https://github.com/Lightning-AI/lightning-thunder/pull/2146 (see https://github.com/Lightning-AI/lightning-thunder/pull/2146#issuecomment-2915824016).