- Fix a regression bug on (XML) HTML tables.

modified:
  tabxml.cpp
added:
  xml_html.test
  xml_html.result
  beers.xml
  coffee.htm

- Fix MDEV-7935 by suppressing error resetting code in delete_or_rename_table.
  However, the issue is that this code was added because without it an assertion
  was raised in some cases. Unfortunately I can't remember what were these cases.
  Therefore fixing it in this case will perhaps make a new crash happening on another cases.
modified:
  ha_connect.cc

- Add the UDF Json_Array_Delete.
modified:
  jsonudf.cpp

storage/connect/tabxml.cpp

@@ -1505,8 +1505,9 @@ bool XMLCOL::ParseXpath(PGLOBAL g, bool mode)
   } else if (Type == 2) {
     // HTML like table, columns are retrieved by position
     new(this) XPOSCOL(Value);        // Change the class of this column
-    Tdbp->Hasnod = true;
-    return false;
+    Inod = -1;
+//  Tdbp->Hasnod = true;
+//  return false;
   } else if (Type == 0 && !mode) {
     strcat(strcat(pbuf, "@"), Name);
   } else {                           // Type == 1