Fix index entries

Author: tkoeppe

source/templates.tex

@@ -1635,7 +1635,7 @@
 
 \pnum
 Two atomic constraints are
-\indextext{identical!atomic constraints|see{atomic constraint!identical}}%
+\indextext{identical!atomic constraints|see{atomic constraint, identical}}%
 \defnx{identical}{atomic constraint!identical}
 if they are formed from the same
 \grammarterm{expression}
@@ -3633,7 +3633,7 @@
 expressions involving
 template parameters.
 \indextext{equivalent!functionally|see{functionally equivalent}}%
-\indextext{template!function!functionally equivalent|see{functionally equivalent!function template}}%
+\indextext{template!function!functionally equivalent|see{functionally equivalent, function template}}%
 Two function templates are
 \defnx{functionally equivalent}{functionally equivalent!function templates}
 if they

source/utilities.tex

@@ -10609,7 +10609,7 @@
 \end{itemdescr}%
 \indextext{smart pointers|)}
 
-\indextext{Atomic smart pointers|(}%
+\indextext{atomic smart pointers|(}%
 \rSec2[util.smartptr.atomic]{Atomic specializations for smart pointers}
 
 \pnum