testsuite: Disable out-of-bounds checker in analyzer/torture/pr93451.c

testsuite: Disable out-of-bounds checker in analyzer/torture/pr93451.c

This patch disables Wanalyzer-out-of-bounds for analyzer/torture/pr93451.c
and makes the test case pass when compiled with -m32.

The emitted warning is a true positive but only occurs if
sizeof (long int) is less than sizeof (double). I've already discussed a
similar case with Dave in the context of pr96764.c and we came to the
conclusion that we just disable the checker in such cases.

Committed under the "obvious fix" rule.

gcc/testsuite/ChangeLog:

	* gcc.dg/analyzer/torture/pr93451.c:
	Disable Wanalyzer-out-of-bounds.