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)

Makefile

@@ -350,12 +350,10 @@ tcc-doc.info: tcc-doc.texi
 export LIBTCC1
 
 %est:
-	$(MAKE) -C tests2 $@
 	$(MAKE) -C tests $@
 
 clean:
 	rm -vf $(PROGS) tcc_p$(EXESUF) tcc.pod *~ *.o *.a *.so* *.out *.exe libtcc_test$(EXESUF)
-	$(MAKE) -C tests2 $@
 	$(MAKE) -C tests $@
 ifneq ($(LIBTCC1),)
 	$(MAKE) -C lib $@