Rollup of 9 pull requests

[workingjubilee]

Successful merges:

• Don't make statement nonterminals match pattern nonterminals #120221 (Don't make statement nonterminals match pattern nonterminals)
• rustdoc-json: Add test for Self type #129123 (rustdoc-json: Add test for Self type)
• Bump backtrace to 0.3.74~ish #129642 (Bump backtrace to 0.3.74~ish)
• allow BufReader::peek to be called on unsized types #129675 (allow BufReader::peek to be called on unsized types)
• Simplify some extern providers #129723 (Simplify some extern providers)
• Remove Option<!> return types. #129724 (Remove Option<!> return types.)
• Stop using ty::GenericPredicates for non-predicates_of queries #129725 (Stop using ty::GenericPredicates for non-predicates_of queries)
• Subtree update of rust-analyzer #129733 (Subtree update of rust-analyzer)
• interpret/visitor: make memory order iteration slightly more efficient #129751 (interpret/visitor: make memory order iteration slightly more efficient)

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