Arm: Clean up PE GAS testsuite correct THUMB tests.
The PE targets don't support mapping symbols and so the disassembler is unable to correctly output thumb instructions when the input was thumb. So for testcases that only have thumb output, I have copied them and skipped the ones for which auto-detection is supposed to work on PE, and added a new one that will force thumb output. This so that the tests still check the mapping symbols. For the tests that switch between thumb and arm in one file I just skip them entirely on PE targets. This cleans up the PE GAS testsuite. gas/ * testsuite/gas/arm/archv6t2-1-pe.d: New test. * testsuite/gas/arm/archv6t2-1.d: Skip pe. * testsuite/gas/arm/csdb.d: Skip pe. * testsuite/gas/arm/sb-thumb1-pe.d: New test. * testsuite/gas/arm/sb-thumb1.d: Skip pe. * testsuite/gas/arm/sb-thumb2-pe.d: New test. * testsuite/gas/arm/sb-thumb2.d: Skip pe. * testsuite/gas/arm/udf.d: Skip pe.