CWG2651 Conversion function templates and "noexcept"

Also fixes NB US 29-069 (C++23 CD).

Author: burblebee

source/templates.tex

@@ -7682,7 +7682,7 @@
 (call it \tcode{A}) as described in~\ref{temp.deduct.type}.
 If the \grammarterm{conversion-function-id} is constructed during
 overload resolution\iref{over.match.funcs},
-the following transformations apply.
+the rules in the remainder of this subclause apply.
 
 \pnum
 If \tcode{P} is a reference type, the type referred to by \tcode{P} is used in place
@@ -7747,8 +7747,9 @@
 (i.e., the type referred to by the reference).
 \item
 If the original \tcode{A} is
-a function pointer or pointer-to-member-function type,
-its \keyword{noexcept}.
+a function pointer or pointer-to-member-function type
+with a potentially-throwing exception specification\iref{except.spec},
+the exception specification.
 \item
 Any cv-qualifiers in \tcode{A}
 that can be restored by a qualification conversion.