修正了 TPC 的一些错误，包括 Test 维护后 TPV 无法重新编译或重编译后越界的部分问题

includes/_fakeduck.py

@@ -271,20 +271,10 @@ class _str:
         return has_char
 
     def split(self, delimiter: str) -> list[str]:
-        stdio.printf("DBG split: entry\n")
-        stdio.fflush(None)
         result = list[str](self.__mbuddy__)
-        stdio.printf("DBG split: list created\n")
-        stdio.fflush(None)
         src: str = self.__data__
-        stdio.printf("DBG split: src=%s\n", src)
-        stdio.fflush(None)
         length: t.CSizeT = len(src)
-        stdio.printf("DBG split: length=%lu\n", length)
-        stdio.fflush(None)
         delim_len: t.CSizeT = string.strlen(delimiter)
-        stdio.printf("DBG split: delim_len=%lu\n", delim_len)
-        stdio.fflush(None)
         start: t.CSizeT = 0
         i: t.CSizeT = 0
         cur: str = src