alias this not tried on template instantiation failure

[dlangBugzillaToGithub]

Bolpat reported this on 2017-04-14T01:11:56Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=17325

Description

struct Array
{
    int[] arr;
    alias arr this;
}

void main()
{
    import std.algorithm : sort, SwapStrategy;
    Array a;
    sort(a); // fails
    sort!("a < b", SwapStrategy.unstable, int[])(a); // works
    sort(a.arr); // works
}

This is a major limitation for writing wrappers.