Add check for invalid numbers.

If there are some characters after TCC parses a number, it is an error.

This bug was reported on list:

http://www.mail-archive.com/tinycc-devel@nongnu.org/msg02014.html

tcc.c

@@ -3660,6 +3660,8 @@ void parse_number(const char *p)
         else
             tokc.ull = n;
     }
+    if (ch)
+        error("invalid number\n");
 }