Amongst other changes, r266077 updated value_range_base::dump so
that it additionally prints the type. This broke an assertion within
the jit testsuite, in jit.dg/test-sum-of-squares.c, which was checking
for:
": [-INF, n_"
but was now getting:
": signed int [-INF, n_"
The test is merely intended as a simple verification that we can read
dump files via gcc_jit_context_enable_dump.
This patch loosens the requirements on the dump so that it should work
with either version of value_range_base::dump.