Fix ignore_layers not working for FP8 models

[Copilot]

• Understand the issue: ignore_layers argument not working for FP8 models
• Root cause: get_fp_layer_names only checks SUPPORTED_LAYER_TYPES which doesn't include FP8Linear
• Fix get_fp_layer_names to also check INNER_SUPPORTED_LAYER_TYPES (FP8Linear)
• Test the fix with a minimal test case
• Add test to existing test suite for FP8 models
• Add comprehensive unit tests for get_fp_layer_names function
• Address code review feedback (improved mocking, removed debug print)
• Run existing tests to ensure no regression
• Security scan passed (0 vulnerabilities found)
• Final code review passed (0 issues found)
• Address PR review comments: removed unused import, added None test, fixed pre-commit issues

Changes in this commit:

• Removed unused import of INNER_SUPPORTED_LAYER_TYPES from test file
• Added test_none_ignore_layers to test None input handling
• Applied pre-commit formatting (black, isort)

Original prompt

#1283

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[Copilot]

Pull request overview

This PR fixes a bug where the --ignore_layers argument fails to exclude layers from quantization in FP8 models. The root cause was that get_fp_layer_names() only checked SUPPORTED_LAYER_TYPES but FP8 models contain FP8Linear layers which exist only in INNER_SUPPORTED_LAYER_TYPES.

Changes:

• Updated get_fp_layer_names() to check both SUPPORTED_LAYER_TYPES and INNER_SUPPORTED_LAYER_TYPES
• Added comprehensive unit tests for layer name matching with regular Linear and FP8Linear layers
• Added integration test validating end-to-end behavior with FP8 models

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
auto_round/compressors/utils.py	Modified get_fp_layer_names() to check both layer type lists, enabling FP8Linear layer detection
test/test_cpu/utils/test_compressor_utils.py	Added unit tests covering regular Linear layers, FP8Linear layers, pattern matching, and edge cases
test/test_cuda/advanced/test_fp8_input.py	Added integration test validating ignore_layers functionality with FP8 models

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[yiliu30]

@copilot Please fix the pre-commit issue

[Copilot]

@copilot Please fix the pre-commit issue

Fixed pre-commit issues (black, isort formatting) in commit 17fbf3a. All pre-commit checks now pass.

[n1ck-guo]

LGTM