patch 8.2.1466: Vim9: cannot index or slice a variable with type "any"

Problem:    Vim9: cannot index or slice a variable with type "any".
Solution:   Add runtime index and slice.
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
index 551dacb..c32403f 100644
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -37,6 +37,8 @@
 int eval1(char_u **arg, typval_T *rettv, evalarg_T *evalarg);
 void eval_addblob(typval_T *tv1, typval_T *tv2);
 int eval_addlist(typval_T *tv1, typval_T *tv2);
+int check_can_index(typval_T *rettv, int evaluate, int verbose);
+int eval_index_inner(typval_T *rettv, int is_range, typval_T *var1, typval_T *var2, char_u *key, int keylen, int verbose);
 char_u *partial_name(partial_T *pt);
 void partial_unref(partial_T *pt);
 int get_copyID(void);