Improve tests for std::vector<bool> printer

The current tests wouldn't notice if the vector<bool> contents were
printed in reverse, because it would read the same forwards and
backwards. Change the content so the tests would fail if that happened.

	* testsuite/libstdc++-prettyprinters/simple.cc: Use non-palindromic
	vector<bool> for test.
	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.

From-SVN: r272499

libstdc++-v3/ChangeLog

+2019-06-20  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/libstdc++-prettyprinters/simple.cc: Use non-palindromic
+	vector<bool> for test.
+	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
+
 2019-06-19  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/bits/stream_iterator.h (istream_iterator::_M_equal()): Make

libstdc++-v3/testsuite/libstdc++-prettyprinters/simple.cc

@@ -120,11 +120,12 @@ main()
   vb.reserve(100);
   vb.push_back(true);
   vb.push_back(true);
+  vb.push_back(true);
   vb.push_back(false);
   vb.push_back(false);
   vb.push_back(true);
   vb.erase(vb.begin());
-// { dg-final { regexp-test vb {std::(__debug::)?vector<bool> of length 4, capacity 128 = \\{true, false, false, true\\}} } }
+// { dg-final { regexp-test vb {std::(__debug::)?vector<bool> of length 5, capacity 128 = \\{true, true, false, false, true\\}} } }
 
   __gnu_cxx::slist<int> sll;
   sll.push_front(23);

libstdc++-v3/testsuite/libstdc++-prettyprinters/simple11.cc

@@ -113,11 +113,12 @@ main()
   vb.reserve(100);
   vb.push_back(true);
   vb.push_back(true);
+  vb.push_back(true);
   vb.push_back(false);
   vb.push_back(false);
   vb.push_back(true);
   vb.erase(vb.begin());
-// { dg-final { regexp-test vb {std::(__debug::)?vector<bool> of length 4, capacity 128 = \\{true, false, false, true\\}} } }
+// { dg-final { regexp-test vb {std::(__debug::)?vector<bool> of length 5, capacity 128 = \\{true, true, false, false, true\\}} } }
 
   __gnu_cxx::slist<int> sll;
   sll.push_front(23);