42       cat("constructing basic_string_view from null is undefined; replace with "  in StringviewNullptrCheckImpl()
45       cat("casting to basic_string_view from null is undefined; replace with "  in StringviewNullptrCheckImpl()
48       cat("passing null as basic_string_view is undefined; replace with the "  in StringviewNullptrCheckImpl()
51       cat("assignment to basic_string_view from null is undefined; replace "  in StringviewNullptrCheckImpl()
54       cat("comparing basic_string_view to null is undefined; replace with the "  in StringviewNullptrCheckImpl()
57       cat("comparing basic_string_view to null is undefined; replace with the "  in StringviewNullptrCheckImpl()
104       changeTo(node("null_arg_expr"), cat("{}")), construction_warning);  in StringviewNullptrCheckImpl()
110       changeTo(node("null_arg_expr"), cat("\"\"")), static_cast_warning);  in StringviewNullptrCheckImpl()
119       changeTo(node("null_arg_expr"), cat("{}")), construction_warning);  in StringviewNullptrCheckImpl()
138                changeTo(node("construct_expr"), cat(name("var_decl"))),  in StringviewNullptrCheckImpl()
156       changeTo(node("null_arg_expr"), cat("{}")), construction_warning);  in StringviewNullptrCheckImpl()
189       changeTo(node("null_arg_expr"), cat("{}")), construction_warning);  in StringviewNullptrCheckImpl()
218                changeTo(node("construct_expr"), cat("\"\"")),  in StringviewNullptrCheckImpl()
226       changeTo(node("construct_expr"), cat("{}")), assignment_warning);  in StringviewNullptrCheckImpl()
233       changeTo(node("construct_expr"), cat("\"\"")),  in StringviewNullptrCheckImpl()
244       changeTo(node("root"), cat(access("instance", cat("empty")), "()")),  in StringviewNullptrCheckImpl()
255       changeTo(node("root"), cat("!", access("instance", cat("empty")), "()")),  in StringviewNullptrCheckImpl()
262       changeTo(node("construct_expr"), cat("{}")), construction_warning);  in StringviewNullptrCheckImpl()
271                changeTo(node("construct_expr"), cat("\"\"")),  in StringviewNullptrCheckImpl()