tests: cleanup

tests:
- add "hello" to test first basic compilation to file/memory
- add "more" test (tests2 suite)
- remove some tests

tests2:
- move into tests dir
- Convert some files from DOS to unix LF
- remove 2>&1 redirection

win32:
- tccrun.c: modify exception filter to exit correctly (needed for btest)
- tcctest.c: exclude weak_test() (feature does not exist on win32)

tests/tests2/17_enum.expect

@@ -1,3 +1,3 @@
-0 1 2 3 54 73 74 75
-12
-54
+0 1 2 3 54 73 74 75
+12
+54