tests/basics: Split sys.exit test to separate file so it can be skipped.

tests/basics/sys1.py

@@ -18,18 +18,3 @@ try:
 except AttributeError:
     # Effectively skip subtests
     print(True)
-
-try:
-    raise SystemExit
-except SystemExit as e:
-    print("SystemExit", e.args)
-
-try:
-    sys.exit()
-except SystemExit as e:
-    print("SystemExit", e.args)
-
-try:
-    sys.exit(42)
-except SystemExit as e:
-    print("SystemExit", e.args)

tests/basics/sys_exit.py

@@ -0,0 +1,24 @@
+# test sys module's exit function
+
+import sys
+
+try:
+    sys.exit
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+try:
+    raise SystemExit
+except SystemExit as e:
+    print("SystemExit", e.args)
+
+try:
+    sys.exit()
+except SystemExit as e:
+    print("SystemExit", e.args)
+
+try:
+    sys.exit(42)
+except SystemExit as e:
+    print("SystemExit", e.args)