Adapt CPPUNIT_ASSERT to C++20 deleted ostream << for sal_Unicode (aka char16_t)

<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1423r3.html> "char8_t
backward compatibility remediation", as implemented now by <https://gcc.gnu.org/
git/?p=gcc.git;a=commit;h=0c5b35933e5b150df0ab487efb2f11ef5685f713> "libstdc++:
P1423R3 char8_t remediation (2/4)" for -std=c++2a, deletes operator << overloads
that would print an integer rather than a (presumably expected) character.

But for simplicity (and to avoid issues with non-printing characters), keep
printing an integer here.

Change-Id: I751b99ee32d418eb488131ffa130d6f7d6d38dc7
Reviewed-on: https://gerrit.libreoffice.org/84348
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

0 files changed, 0 insertions, 0 deletions