[testsuite] Update test cases

Modify the test cases to avoid features which are not
handled by our dejagnu implementation:

* Delete tests which cannot be handled by gdc testsuite
  (test9369, fail128) (unicode/BOM)
* Comment shebang lines (not supported by testsuite)
* Move link7745 import to avoid conflict
* Adjust tests as we can not pass arguments to the tests
* template9.d: Test is actually not fixed in 2.062 frontend
* Add "EXTRA_FILES" information
[testsuite] GDC doesn't need __va_argsave
[testsuite] Port inline asm to GCC syntax
Merge pull request #60 from jpf91/testSuite2

Update / cleanup testsuite