Use evaluated call sites for formatting

Editor assessment

This is the vaguest kind of refactor subject: 'use evaluated call sites for formatting' is meaningful only to someone already deep in core/error diagnostics. The type and scope are right, and the PR reference is present, but there is no body to unpack what 'evaluated call sites' means, why formatting needed them, presumably for accurate error locations, or what user-visible difference, if any, results. Since refactors should be behavior-neutral, saying so explicitly would add value. Length and style conventions are all satisfied; the failure here is purely informational, leaving git archaeologists to reconstruct intent from the diff alone.