fix again

Author: sumneko

script/core/diagnostics/assign-type-mismatch.lua

@@ -76,14 +76,14 @@ return function (uri, callback)
                 return
             end
             if source.type == 'setfield'
-            or source.type == 'setindex'
-            or source.type == 'tableexp' then
+            or source.type == 'setindex' then
                 return
             end
         end
 
         local valueNode = vm.compileNode(value)
-        if source.type == 'setindex' then
+        if source.type == 'setindex'
+        or source.type == 'tableexp' then
             -- boolean[1] = nil
             valueNode = valueNode:copy():removeOptional()
         end

test/diagnostics/type-check.lua

@@ -961,6 +961,14 @@ TEST [[
 local t = { true, false, nil }
 ]]
 
+TEST [[
+---@type boolean|nil
+local x
+
+---@type boolean[]
+local t = { true, false, x }
+]]
+
 config.remove(nil, 'Lua.diagnostics.disable', 'unused-local')
 config.remove(nil, 'Lua.diagnostics.disable', 'unused-function')
 config.remove(nil, 'Lua.diagnostics.disable', 'undefined-global')