[Issue 7753] Support opIndexCreate as part of index operator overloading in user-defined types

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=7753

ZombineDev <petar.p.kirov at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |petar.p.kirov at gmail.com

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