fn suggest_ampmut<'tcx>(
infcx: &BorrowckInferCtxt<'tcx>,
body: &Body<'tcx>,
opt_assignment_rhs_stmt: Option<&Statement<'tcx>>,
) -> Option<AmpMutSugg>
fn suggest_ampmut<'tcx>(
infcx: &BorrowckInferCtxt<'tcx>,
body: &Body<'tcx>,
opt_assignment_rhs_stmt: Option<&Statement<'tcx>>,
) -> Option<AmpMutSugg>