Fix an out-of-date comment.  No changes to code.

FossilOrigin-Name: 10cc12b16b2f1ae4e6b3a84cef5a44564d282e9c
diff --git a/src/expr.c b/src/expr.c
index 3eee3c6..d504be1 100644
--- a/src/expr.c
+++ b/src/expr.c
@@ -4043,9 +4043,10 @@
 }
 
 /*
-** Analyze the given expression looking for aggregate functions and
-** for variables that need to be added to the pParse->aAgg[] array.
-** Make additional entries to the pParse->aAgg[] array as necessary.
+** Analyze the pExpr expression looking for aggregate functions and
+** for variables that need to be added to AggInfo object that pNC->pAggInfo
+** points to.  Additional entries are made on the AggInfo object as
+** necessary.
 **
 ** This routine should only be called after the expression has been
 ** analyzed by sqlite3ResolveExprNames().