"./rdata/in_1/a_1.c", line 178: warning(1184): possible use of "=" where "=="
          was intended
"./rdata/in_1/a_1.c", line 179: warning(1184): possible use of "=" where "=="
          was intended

By chaning them to ==, because (a) we don't allow side-effects in REQUIRE()
and (b) it is clear from the rest of the code that it really was a test that
was desired and not an assignment.