[committed] libstdc++: Implement proposed resolution for LWG 3532

[Patrick Palka]

Tested on x86_64-pc-linux-gnu, committed as "obvious".

libstdc++-v3/ChangeLog:

	* include/std/ranges (split_view::_InnerIter::operator++):
	Depend on _Base instead of _Vp directly, as per LWG 3532.
---
 libstdc++-v3/include/std/ranges | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index 73d3e008a46..4975d5c630b 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -2898,7 +2898,7 @@ namespace views::__adaptor
 	  constexpr decltype(auto)
 	  operator++(int)
 	  {
-	    if constexpr (forward_range<_Vp>)
+	    if constexpr (forward_range<_Base>)
 	      {
 		auto __tmp = *this;
 		++*this;
-- 
2.31.1.362.g311531c9de