Bug 21612 – [REG]Incorrect conflict of function overloads

I encountered a strange compile error when trying to build Botan. https://github.com/shoo/Cookbook/runs/1816118185?check_suite_focus=true#step:4:93 I performed minimization with dustmite and obtained the following results: ----------------- struct BigInt { void opAssign(const BigInt ) { } void opAssign(BigInt other) const { } } ----------------- And exec: ----------------- > dmd bigint.d function `bigint.BigInt.opAssign(BigInt other)` conflicts with previous declaration at bigint.d(3) ----------------- This does not happen in dmd 2.094.2. However, with 2.095.0, it seems to occur on both Windows and Linux. Strangely enough, this did not occur with the online compiler. It seems to occur even with dmd master at the moment.

Fixed in stable by https://github.com/dlang/dmd/pull/12053