patch 9.2.0282: tests: Test_viminfo_len_overflow() fails

patch 9.2.0282: tests: Test_viminfo_len_overflow() fails

Problem:  tests: Test_viminfo_len_overflow() fails
Solution: Catch E342 (Yasuhiro Matsumoto).

Test_viminfo_len_overflow tries to allocate ~4GB, which may throw E342
(out of memory) depending on the platform's memory allocation behavior.
This is an acceptable outcome since the test's purpose is to verify
that Vim does not crash on a crafted viminfo entry.

closes: #19891

Signed-off-by: Yasuhiro Matsumoto <mattn.jp@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>