* renamed malloc.h mymalloc.h, and added MALLARG as the type of the

argument to malloc() (size_t or unsigned int)

* listobject.c: check for overflow of the size of the object,
  so things like range(0x7fffffff) will raise MemoryError instead
  of calling malloc() with -4 (and then crashing -- malloc's fault)

Include/allobjects.h

@@ -50,7 +50,7 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include "fileobject.h"
 
 #include "errors.h"
-#include "malloc.h"
+#include "mymalloc.h"
 
 extern char *strdup PROTO((const char *));
 extern void fatal PROTO((char *));