[basic.lookup.unqual] Clarify conversion-function-id components lookup

Author: languagelawyer

source/basic.tex

@@ -1777,12 +1777,13 @@
 such a name undergoes unqualified name lookup from the point where it appears.
 
 \pnum
-An unqualified name that is a component name\iref{expr.prim.id.unqual} of
+If a \grammarterm{conversion-function-id} is a qualified name
+with lookup context $S$\iref{basic.lookup.qual},
+an unqualified name $U$ that is a component name\iref{expr.prim.id.unqual} of
 a \grammarterm{type-specifier} or \grammarterm{ptr-operator} of
-a \grammarterm{conversion-type-id} is looked up in the same fashion
-as the \grammarterm{conversion-function-id} in which it appears.
-If that lookup finds nothing, it undergoes unqualified name lookup;
-in each case, only names
+its \grammarterm{conversion-type-id} is looked up in $S$;
+otherwise, or if that lookup finds nothing, $U$ undergoes unqualified name lookup.
+In each case, only names
 that denote types or templates whose specializations are types are considered.
 \begin{example}
 \begin{codeblock}