remove some unused fields and make sure doc type array gets included as a compiled node

Author: hahn-kev

script/core/completion/completion.lua

@@ -1518,8 +1518,6 @@ local function tryArray(state, position, results)
     if source.type ~= 'table' and (not source.parent or source.parent.type ~= 'table') then
         return
     end
-    local mark = {}
-    local fields = {}
     local tbl = source
     if source.type ~= 'table' then
         tbl = source.parent

script/vm/compiler.lua

@@ -1285,7 +1285,7 @@ local compilerSwitch = util.switch()
                     if not guide.isBasicType(pn.name) then
                         vm.setNode(source, pn)
                     end
-                elseif pn.type == 'doc.type.table' then
+                elseif pn.type == 'doc.type.table' or pn.type == 'doc.type.array' then
                     vm.setNode(source, pn)
                 end
             end