tests/run-tests: Re-instate skipping of doubleprec test on pyboard.

tests/run-tests

@@ -261,7 +261,7 @@ def run_tests(pyb, tests, args):
     if pyb is not None:
         skip_tests.add('basics/exception_chain.py') # warning is not printed
         skip_tests.add('float/float_divmod.py') # tested by float/float_divmod_relaxed.py instead
-        skip_tests.add('float/float2int_doubleprec.py') # requires double precision floating point to work
+        skip_tests.add('float/float2int_doubleprec_intbig.py') # requires double precision floating point to work
         skip_tests.add('micropython/meminfo.py') # output is very different to PC output
         skip_tests.add('extmod/machine_mem.py') # raw memory access not supported