error: param cannot be converted from const char * to STRUCTOBJ2**

The test overrides the return value of STRUCTOBJ1 *Foo(LPCSTR,STRUCTOBJ2 **) but gets an error that param 2 cannot be converted from const char * to STRUCTOBJ2**

struct STRUCTOBJ1
{
    int x;
};
#define LPSTRUCTOBJ1 STRUCTOBJ1*

struct STRUCTOBJ2
{
    int y;
};
#define LPSTRUCTOBJ2 STRUCTOBJ2*
typedef const char *LPCSTR;

LPSTRUCTOBJ1 Foo(LPCSTR x, LPSTRUCTOBJ2* y)
{
    return nullptr;
}

TEST_METHOD(JimTest)
    {
        STRUCTOBJ1 my_obj;
        FAKE_GLOBAL(Foo);
        //WHEN_CALLED(Foo(ANY_VAL(LPCSTR), TYPEOF(STRUCTOBJ2**))).Return(&my_obj);
        //WHEN_CALLED(Foo(ANY_VAL(LPCSTR), TYPEOF(LPSTRUCTOBJ2*))).Return(&my_obj);
        //WHEN_CALLED(Foo(_, TYPEOF(LPSTRUCTOBJ2*))).Return(&my_obj);
        WHEN_CALLED(Foo(_, _)).Return(&my_obj);
        //all of the above produce error:
        //error C2664 : \\\\\\\'STRUCTOBJ1 *Foo(LPCSTR,STRUCTOBJ2 **)\\\\\\\' : cannot convert argument 2 from \\\\\\\'const char *\\\\\\\' to \\\\\\\'STRUCTOBJ2 **\\\\\\\'
    }