patch 8.2.4529: Vim9: comparing partial with function fails

Problem:    Vim9: comparing partial with function fails.
Solution:   Support this comparison.  Avoid a crash. (closes #9909)
            Add more test cases.
diff --git a/src/vim9instr.c b/src/vim9instr.c
index 7fbf529..e36ea16 100644
--- a/src/vim9instr.c
+++ b/src/vim9instr.c
@@ -370,7 +370,9 @@
     }
     else if (type1 == VAR_ANY || type2 == VAR_ANY
 	    || ((type1 == VAR_NUMBER || type1 == VAR_FLOAT)
-	      && (type2 == VAR_NUMBER || type2 == VAR_FLOAT)))
+			       && (type2 == VAR_NUMBER || type2 == VAR_FLOAT))
+	    || (type1 == VAR_FUNC && type2 == VAR_PARTIAL)
+	    || (type1 == VAR_PARTIAL && type2 == VAR_FUNC))
 	isntype = ISN_COMPAREANY;
     else if (type1 == VAR_SPECIAL || type2 == VAR_SPECIAL)
     {