[expr.new] Use repeated \indextext for index redirects with multiple targets. (#4065)

Author: Eelis

source/expressions.tex

@@ -4656,9 +4656,12 @@
 
 \pnum
 \indextext{expression!\idxcode{new}}%
-\indextext{free store|seealso{\tcode{new}, \tcode{delete}}}%
-\indextext{memory management|see{\tcode{new}, \tcode{delete}}}%
-\indextext{storage management|see{\tcode{new}, \tcode{delete}}}%
+\indextext{free store|seealso{\tcode{new}}}%
+\indextext{free store|seealso{\tcode{delete}}}%
+\indextext{memory management|see{\tcode{new}}}%
+\indextext{memory management|see{\tcode{delete}}}%
+\indextext{storage management|see{\tcode{new}}}%
+\indextext{storage management|see{\tcode{delete}}}%
 \indextext{\idxcode{new}}%
 The \grammarterm{new-expression} attempts to create an object of the
 \grammarterm{type-id}\iref{dcl.name} or \grammarterm{new-type-id} to which