[expr.delete] Replace 'denote' with 'pointed to'. (#4762)

This change also introduces a name for the pointed-to object,
which removes the erstwhile ambiguous antecedent for 'its'.

Author: jensmaurer

source/expressions.tex

@@ -5595,9 +5595,9 @@
 \pnum
 For a single-object delete expression,
 the deleted object is
-the object denoted by the operand
-if its static type does not have a virtual destructor,
-and its most-derived object otherwise.
+the object $A$ pointed to by the operand
+if the static type of $A$ does not have a virtual destructor,
+and the most-derived object of $A$ otherwise.
 \begin{note}
 If the deallocation function is not a destroying operator delete
 and the deleted object is not the most derived object in the former case,