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/tcctest.c

@@ -594,7 +594,9 @@ int main(int argc, char **argv)
     local_label_test();
     asm_test();
     builtin_test();
+#ifndef _WIN32
     weak_test();
+#endif
     global_data_test();
     cmp_comparison_test();
     math_cmp_test();
@@ -2464,7 +2466,7 @@ void builtin_test(void)
     printf("res = %d\n", __builtin_constant_p(1 + 2));
     printf("res = %d\n", __builtin_constant_p(&constant_p_var));
     printf("res = %d\n", __builtin_constant_p(constant_p_var));
-}
+}
 
 #ifndef _WIN32
 extern int __attribute__((weak)) weak_f1(void);
@@ -2520,6 +2522,7 @@ int __attribute__((weak)) weak_f2() { return 222; }
 
 int __attribute__((weak)) weak_f2() { return 222; }
 int __attribute__((weak)) weak_f3() { return 333; }
+int __attribute__((weak)) weak_v2 = 222;
 int __attribute__((weak)) weak_v3 = 333;
 #endif