[clangd] Add tweak to override pure virtuals (#139348)

closes https://github.com/clangd/clangd/issues/1037 
closes https://github.com/clangd/clangd/issues/2240

Example:

```c++
class Base {
public:
  virtual void publicMethod() = 0;

protected:
  virtual auto privateMethod() const -> int = 0;
};

// Before:
//                        // cursor here
class Derived : public Base{}^ ;

// After:
class Derived : public Base {
public:
  void publicMethod() override {
    // TODO: Implement this pure virtual method.
    static_assert(false, "Method `publicMethod` is not implemented.");
  }

protected:
  auto privateMethod() const -> int override {
    // TODO: Implement this pure virtual method.
    static_assert(false, "Method `privateMethod` is not implemented.");
  }
};
```


https://github.com/user-attachments/assets/79de40d9-1004-4c2e-8f5c-be1fb074c6de

---------

Co-authored-by: Marco Maia <marco.maia@iarasystems.com.br>

0 files changed, 0 insertions, 0 deletions