Deny non-lifetime bound vars in `for<..> ||` closure binders Moves the check for illegal bound var types from astconv to resolve_bound_vars. If a binder is defined to have a type or const late-bound var that's not allowed, we'll resolve any usages to ty error or const error values, so we shouldn't ever see late-bound types or consts in places they aren't expected. Fixes #108184 Fixes #108181 Fixes #108192 |
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For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.