Bug 11916 – [IFTI] Disabled by constraint overload with `out` with IFTI breaks overload resolution

This code should compile: --- void f(T)(T) { } void f(T)(out T) if(false) { } // line 2 void main() { const int n = 1; f(n); // no errors for `f!int(n)` } --- main.d(2): Error: cannot have const out parameter of type const(int) --- The bug is major as there is no line number for the call. Also note the code will work with `ref` instead of `out` because of Issue 11915. The issue is segregated from Issue 11857.

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/868bc03002c5eca0a615c141f7dcfeccf0a7ab17 fix Issue 11916 - [IFTI] Disabled by constraint overload with `out` with IFTI breaks overload resolution https://github.com/D-Programming-Language/dmd/commit/c6289aaaed66f86de0950954c953f45b0f4f342d Merge pull request #4091 from 9rnsr/fix12447 Issue 12447 & 11915 & 11916 - fix overload resolution issue around IFTI and out parameter

Commits pushed to 2.067 at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/868bc03002c5eca0a615c141f7dcfeccf0a7ab17 fix Issue 11916 - [IFTI] Disabled by constraint overload with `out` with IFTI breaks overload resolution https://github.com/D-Programming-Language/dmd/commit/c6289aaaed66f86de0950954c953f45b0f4f342d Merge pull request #4091 from 9rnsr/fix12447