[Accepted as a DR at the June, 2021 meeting.]

Expressions denoting non-static member functions are currently classified as prvalues (7.5.5.3 [expr.prim.id.qual] paragraph 2; 7.6.1.5 [expr.ref] bullet 6.3.2; and 7.6.4 [expr.mptr.oper] paragraph 6). It would simplify the specification if such expressions were categorized as lvalues. (See also this pull request.)