Auto merge of #61758 - Centril:rollup-ew2uxng, r=Centril

Auto merge of #61758 - Centril:rollup-ew2uxng, r=Centril

Rollup of 9 pull requests

Successful merges:

 - #60187 (Generator optimization: Overlap locals that never have storage live at the same time)
 - #61348 (Implement Clone::clone_from for Option and Result)
 - #61568 (Use Symbol, Span in libfmt_macros)
 - #61632 (ci: Collect CPU usage statistics on Azure)
 - #61654 (use pattern matching for slices destructuring)
 - #61671 (implement nth_back for Range(Inclusive))
 - #61688 (is_fp and is_floating_point do the same thing, remove the former)
 - #61705 (Pass cflags rather than cxxflags to LLVM as CMAKE_C_FLAGS)
 - #61734 (Migrate rust-by-example to MdBook2)

Failed merges:

r? @ghost