Invalid type diagnostic doesn't show when passing value from array directly to a function

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### How are you using the lua-language-server?

Other

### Which OS are you using?

Linux

### What is the issue affecting?

Type Checking, Diagnostics/Syntax Checking

### Expected Behaviour

When using a value from an array as a parameter I expect type checking to work.

### Actual Behaviour

Type checking only works when I assign the value from the array to a temporary variable, not when passing it to a function directly.

### Reproduction steps

This doesn't show a warning:

```lua
---@param num integer
function receive(num)
end

---@type (integer?)[]
local values = {}

receive(values[1])
```

This works:

```lua
local value = values[1]
receive(value) -- Cannot assign `integer?` to parameter `integer`.
```

### Additional Notes

_No response_

### Log File

_No response_

No source file or test is named. Start by reproducing the two Lua snippets and tracing the type-checking diagnostic path for a direct array-index argument versus a temporary variable; done means the direct call reports the same `integer?` to `integer` mismatch.

Written by the indexing model from the issue text.