test: Expose double return bug

Author: Et7f3

test/bytecode_3.8/00_double_return.pyc

@@ -0,0 +1,8 @@
+def main():
+  if input() == 0:
+    print("0")
+    return
+  if input() == 1:
+    print("1")
+  else:
+    printf("other")