Unwrap c++ templates

I have c++ code with templates. For example

template <class T> 
class Cls {
    T data;
};

typedef Cls<int> TIntCls; // line 100

typedef Cls<float> TFloatCls; // line 200

How can I get definitions for this class without templates, for example:

// line 100 definition:
class Cls_int {
    int data;
}
// line 200 definition:
class Cls_float {
    float data;
}

This classes need me only for help, not for real development, I wouldn`t compile them in real code.

Maybe some flag of compiler (I use gcc) or python-perl-php-other script can do this?

Main difficulty of question is that in project over 100+ H-files with templates, and I recently use template from template class, which use template as template argument from other class. Multiply using keywords also meet in code. So I want to find types of field in some place of code (on line 100 from my example).

You can use cppinsights to get an idea of what that would look like. Here's what I input:

template <class T> 
class Cls 
{
  T data;
};

int main()
{
  Cls<int> cls;
}

Here's the output I get:

template<class T>
class Cls
{
  T data;
};

/* First instantiated from: insights.cpp:8 */
#ifdef INSIGHTS_USE_TEMPLATE
template<>
class Cls<int>
{
  int data;
  public: 
  // inline Cls() noexcept = default;
};

#endif

int main()
{
  Cls<int> cls;
  return 0;
}