定义泛型函数对于指定了泛型类型的参数插件无法识别该参数的类型，不能提示出该类型的正确成员

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

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Windows

### What is the issue affecting?

Annotations

### Expected Behaviour

插件应该识别 testfun 函数 参数 p 有 p1 的字段

### Actual Behaviour

插件无法识别 testfun 函数 参数 p 有 p1 字段

### Reproduction steps

---@class TestTP
---@field p1 string
---@field p2 number

---@generic T: TestTP
---@param p T
function testfun(p)
print(p.p1)
end

### Additional Notes

_No response_

### Log File

_No response_

Start with the provided generic-function reproduction and trace annotation and type-inference handling for the constrained type parameter T. Confirm the behavior in the Visual Studio Code extension, then consider the issue done when p.p1 is recognized as a string and its members are correctly suggested.

Written by the indexing model from the issue text.