internal: Fix comment for astDtorListUnscope()

(cherry picked from commit 68025ea)

Author: dkl

src/compiler/ast-misc.bas

@@ -1135,10 +1135,14 @@ function astDtorListScopeEnd( ) as integer
 	end with
 end function
 
+'' Remove cookie markers from the dtor list entries for the given scope,
+'' indicating that they should be destroyed by the next toplevel
+'' astDtorListFlush(0).
+'' This is useful if an expression was at first parsed with a dtor list scope,
+'' but then it turns out that that's not needed, and can be undone using this
+'' function.
 sub astDtorListUnscope( byval cookie as integer )
 	dim as AST_DTORLIST_ITEM ptr i = any
-
-	'' call the dtors in the reverse order
 	i = listGetTail( @ast.dtorlist )
 	while( i )
 		if( i->cookie = cookie ) then