[PARSE BUG]: various type aliases (C array, struct, function)

Problem description

It seems that the new style of alias declarations are not completely implemented.
The equivalent typedefs are working as expected.

I provide below a short program which works under compiler explorer, but is not parsed correctly (I took the declaration part into the demo)

#include <iostream>

using namespace std;

// --------------- begin to be placed into the parser demo
using aType = int[4];
using fType = void(int);
using lType = struct {int x;int y;int z;int t;};
using sType = struct l{int x;int y;int z;int t;};
using vType = union {int x;int y;int z;int t;};
using uType = union v{int x;int y;int z;int t;};
using arefType = int(&)[4];
using frefType = int(&)(int);
using lrefType = struct {int x;int y;int z;int t;}&;
using srefType = struct l/*{int x;int y;int z;int t;}*/&;
using vrefType = union {int x;int y;int z;int t;}&;
using urefType = union v/*{int x;int y;int z;int t;}*/&;
using aptrType = int(*)[4];
using fptrType = int(*)(int);
using lptrType = struct {int x;int y;int z;int t;}*;
using sptrType = struct l/*{int x;int y;int z;int t;}*/*;
using vptrType = union {int x;int y;int z;int t;}*;
using uptrType = union v/*{int x;int y;int z;int t;}*/*;

typedef int(aType1)[4];
typedef void(fType1)(int);
typedef struct {int x;int y;int z;int t;} lType1;
typedef struct l/*{int x;int y;int z;int t;}*/ sType1;
typedef union {int x;int y;int z;int t;} vType1;
typedef union v/*{int x;int y;int z;int t;}*/ uType1;
typedef int(&arefType1)[4];
typedef int(&frefType1)(int);
typedef struct {int x;int y;int z;int t;}& lrefType1;
typedef struct l/*{int x;int y;int z;int t;}*/& srefType1;
typedef union {int x;int y;int z;int t;}& vrefType1;
typedef union v/*{int x;int y;int z;int t;}*/& urefType1;
typedef int(*aptrType1)[4];
typedef int(*fptrType1)(int);
typedef struct {int x;int y;int z;int t;}* lptrType1;
typedef struct l/*{int x;int y;int z;int t;}*/* sptrType1;
typedef union {int x;int y;int z;int t;}* vptrType1;
typedef union v/*{int x;int y;int z;int t;}*/* uptrType1;
// --------------- end to be placed into the parser demo

int f(int x)
{
    return x;
}

int main(int argc, char* argv[]) 
{ 
    aType x{0,1,2,3};
    cout << x[1] << endl;
    static_assert(is_same<aType, aType1>::value, "wrong");
    static_assert(is_same<decltype(x[1]), int&>::value, "wrong");

    arefType x2 = x;
    cout << x2[2] << endl;
    static_assert(is_same<arefType, arefType1>::value, "wrong");
    static_assert(is_same<decltype(x2[2]), int&>::value, "wrong");

    aptrType x3 = &x;
    cout << (*x3)[3] << endl;
    static_assert(is_same<aptrType, aptrType1>::value, "wrong");
    static_assert(is_same<decltype((*x3)[3]), int&>::value, "wrong");

    static_assert(is_same<arefType, aType&>::value, "wrong");
    static_assert(is_same<aptrType, aType*>::value, "wrong");

//---------------------------------

    cout << f(1) << endl;
    static_assert(is_same<fType, fType1>::value, "wrong");
    static_assert(is_same<decltype(f(1)), int>::value, "wrong");

    frefType ff2 = f;
    cout << ff2(2) << endl;
    static_assert(is_same<frefType, frefType1>::value, "wrong");
    static_assert(is_same<decltype(ff2(2)), int>::value, "wrong");

    fptrType ff3 = f;
    cout << ff3(3) << endl;
    static_assert(is_same<fptrType, fptrType1>::value, "wrong");
    static_assert(is_same<decltype(ff3(3)), int>::value, "wrong");

    static_assert(is_same<frefType, decltype(f)&>::value, "wrong");
    static_assert(is_same<fptrType, decltype(f)*>::value, "wrong");

//---------------------------------

    sType s{0,1,2,3};
    cout << s.y << endl;
    static_assert(is_same<sType, sType1>::value, "wrong");
    static_assert(is_same<decltype(s.y), int>::value, "wrong");

    srefType s2 = s;
    cout << s2.z << endl;
    static_assert(is_same<srefType, srefType1>::value, "wrong");
    static_assert(is_same<decltype(s2.z), int>::value, "wrong");

    sptrType s3 = &s;
    cout << s3->t << endl;
    static_assert(is_same<sptrType, sptrType1>::value, "wrong");
    static_assert(is_same<decltype(s3->t), int>::value, "wrong");

    static_assert(is_same<srefType, sType&>::value, "wrong");
    static_assert(is_same<sptrType, sType*>::value, "wrong");

    //anon structs are different types
    static_assert(!is_same<lrefType, lType&>::value, "wrong");
    static_assert(!is_same<lptrType, lType*>::value, "wrong");
//---------------------------------

    uType u; u.y=1;
    cout << u.y << endl;
    static_assert(is_same<sType, sType1>::value, "wrong");
    static_assert(is_same<decltype(s.y), int>::value, "wrong");

    urefType u2 = u; u.z=2;
    cout << u2.z << endl;
    static_assert(is_same<urefType, urefType1>::value, "wrong");
    static_assert(is_same<decltype(u2.z), int>::value, "wrong");

    uptrType u3 = &u; u.t=3;
    cout << u3->t << endl;
    static_assert(is_same<uptrType, uptrType1>::value, "wrong");
    static_assert(is_same<decltype(u3->t), int>::value, "wrong");

    static_assert(is_same<urefType, uType&>::value, "wrong");
    static_assert(is_same<uptrType, uType*>::value, "wrong");

    //anon unions are different types
    static_assert(!is_same<vrefType, vType&>::value, "wrong");
    static_assert(!is_same<vptrType, vType*>::value, "wrong");

    return 0;
}

C++ code that can't be parsed correctly (please double-check that https://robotpy.github.io/cxxheaderparser/ has the same error)

//these all fail to be parsed, the typedef equivalents are correctly parsed.
using aType = int[4];
using fType = void(int);
using lType = struct {int x;int y;int z;int t;};
using sType = struct l{int x;int y;int z;int t;};
using vType = union {int x;int y;int z;int t;};
using uType = union v{int x;int y;int z;int t;};
using lrefType = struct {int x;int y;int z;int t;}&;
using vrefType = union {int x;int y;int z;int t;}&;
using lptrType = struct {int x;int y;int z;int t;}*;
using vptrType = union {int x;int y;int z;int t;}*;

Start with the parser demo and run the supplied C++ alias declarations, comparing the results with the equivalent typedef declarations. Trace handling of using aliases for arrays, functions, structs, unions, references, and pointers; done means all listed declarations parse correctly like their typedef equivalents.