Rollup of 5 pull requests

[Centril]

Successful merges:

• Update option.rs #68733 (Update option.rs)
• Issue error on compile-fail header in UI test #68760 (Issue error on compile-fail header in UI test)
• Do not suggest duplicate bounds #68763 (Do not suggest duplicate bounds)
• parser: syntactically allow self in all fn contexts #68764 (parser: syntactically allow self in all fn contexts)
• parser: avoid re-wrapping NtItem #68769 (parser: avoid re-wrapping NtItem)

Failed merges:

r? @ghost