https://issues.dlang.org/show_bug.cgi?id=13552

          Issue ID: 13552
           Summary: Type deduction doesn't fall back to alias this if
                    postblit is disabled
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: schuetzm@gmx.net

In the following code, the line with `i` compiles, but the line with `j` doesn't. It complains that "struct xx.S is not copyable because it is annotated with @disable".

    struct S {
        int x;
        @disable this(this);
        alias x this;
    }

    void main() {
        S s;
        int i = s;
        auto j = s;
    }

I think it should compile and infer `j` to be `int`.

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