[Issue 20488] AA.length in multiple modules causes opDispatch failure

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20488

Simen Kjaeraas <simen.kjaras at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |simen.kjaras at gmail.com
            Summary|Strange opDispatch error    |AA.length in multiple
                   |with multiple module        |modules causes opDispatch
                   |compilation and the use of  |failure
                   |hashmaps                    |

--- Comment #1 from Simen Kjaeraas <simen.kjaras at gmail.com> ---
Further reduced:

foo.d:
///////////////////////////
struct Foo {
    bool[int] aa;
    void fun() {
        int i = aa.length;
    }
}
///////////////////////////

bar.d:
///////////////////////////
struct Bar {
    int[int] aa;
    void fun() {
        this.f(aa.length);
    }
    void opDispatch (string s, Args...) (Args args) {
    }
}
///////////////////////////

Compile with 'dmd foo bar', and you get
  bar.d(4): Error: no property f for type bar.Bar

If the two AA types are identical it compiles.

Adding 'int j = (int[int]).init.length;' to S1.fun() does make it compile, but
only if it's before the 'int i = ...' line (wat).

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