CWG3085 Apply restriction inside for-range-declaration

Fixes NB US 34-067 (C++26 CD).

Author: eisenwave

source/statements.tex

@@ -147,10 +147,9 @@
 it is interpreted as the latter.
 
 \pnum
-In the \grammarterm{decl-specifier-seq} of a \grammarterm{condition}
-or of a \grammarterm{for-range-declaration},
-including that of any \grammarterm{structured-binding-declaration} of
-the \grammarterm{condition},
+Let $D$ be any \grammarterm{condition} or \grammarterm{for-range-declaration}.
+In the \grammarterm{decl-specifier-seq} of $D$,
+including that of any \grammarterm{structured-binding-declaration} of $D$,
 each
 \grammarterm{decl-specifier} shall be either a \grammarterm{type-specifier}
 or \keyword{constexpr}.