void test(uint a)
{

}

void test(char[] a)
{

}

template _test1(T = void)
{
	alias test _test1;
}

alias test _test2;

void main()
{
	_test2("a".dup);
	_test2(1U);
	
	_test1!()("a".dup); // Error: cannot implicitly convert expression (_adDupT(&_D12TypeInfo_Aya6__initZ,cast(string)"a")) of type char[] to uint
	_test1!()(1U);
}

Note how the alias outside the template works fine, but the one inside the alias only picks up the lexically first match. Note that this works fine in D1.