CWG3091 Linking of translation units as sequences of tokens

Fixes NB US 15-032 (C++26 CD).

Author: eisenwave

source/basic.tex

@@ -2887,8 +2887,8 @@
 \indextext{program}%
 \indextext{linking}%
 A \defn{program} consists of one or more translation units\iref{lex.phases}
-linked together. A translation unit consists
-of a sequence of declarations.
+that are translated and linked together.
+A translation unit consists of a sequence of declarations.
 
 \begin{bnf}
 \nontermdef{translation-unit}\br

source/lex.tex

@@ -283,7 +283,7 @@
 \item
 \indextext{linking}%
 Translated translation units are combined, and
-all external entity references are resolved. Library
+all external entity references are resolved\iref{basic.link}. Library
 components are linked to satisfy external references to
 entities not defined in the current translation. All such translator
 output is collected into a program image which contains information