Rollup of 10 pull requests
Successful merges:
- #138676 (Implement overflow for infinite implied lifetime bounds)
- #139024 (Make error message for missing fields with `..` and without `..` more consistent)
- #139098 (Tell LLVM about impossible niche tags)
- #139124 (compiler: report error when trait object type param reference self)
- #139321 (Update to new rinja version (askama))
- #139346 (Don't construct preds w escaping bound vars in `diagnostic_hir_wf_check`)
- #139386 (make it possible to use stage0 libtest on compiletest)
- #139421 (Fix trait upcasting to dyn type with no principal when there are projections)
- #139464 (Allow for reparsing failure when reparsing a pasted metavar.)
- #139490 (Update some comment/docs related to "extern intrinsic" removal)
r? `@ghost`
`@rustbot` modify labels: rollup
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