Rollup of 8 pull requests

[matthiaskrgr]

Successful merges:

• Allow deriving multipart suggestions #100970 (Allow deriving multipart suggestions)
• Reinstate preloading of some dll imports #100984 (Reinstate preloading of some dll imports)
• Use getentropy when possible on all Apple platforms #101011 (Use getentropy when possible on all Apple platforms)
• Add tier-3 support for powerpc64 and riscv64 openbsd #101025 (Add tier-3 support for powerpc64 and riscv64 openbsd)
• Remove span fatal from ast lowering #101049 (Remove span fatal from ast lowering)
• Make call suggestions more general and more accurate #101100 (Make call suggestions more general and more accurate)
• Fix UB from misalignment and provenance widening in std::sys::windows #101171 (Fix UB from misalignment and provenance widening in std::sys::windows)
• Tweak WellFormedLocs a bit #101185 (Tweak WellFormedLocs a bit)

Failed merges:

r? @ghost
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