Bug 23786 – __traits(parent, {}) in overloaded function produces wierd results dependent on declaration order

### test.d ### enum m(string s) = q{ pragma(msg, __traits(parent, {}).mangleof); __traits(parent, {})(} ~ s ~ q{); }; static if (0) // A { void foo(int i) { mixin(m!"1.0"); } void foo(int* p) {} /+ 4test3foo test.d-mixin-8(10): Error: none of the overloads of `foo` are callable using argument types `(double)` test.d(8): Candidates are: `test.foo(int i)` test.d(9): `test.foo(int* p)` +/ } static if (0) // B { void foo(int i) { mixin(m!"&i"); } void foo(int* p) {} /+ 4test3foo Error: program killed by signal 11 +/ } static if (0) // C { void foo(int* p) {} void foo(int i) { mixin(m!"&i"); } /+ _D4test3fooFiZv test.d-mixin-31(33): Error: function `test.foo(int i)` is not callable using argument types `(int*)` test.d-mixin-31(33): cannot pass argument `& i` of type `int*` to parameter `int i` +/ } void main() { foo(1); } ############## Enabling case A and running it with 'dmd -run test.d' prints an invalid mangle and suggests thats '__traits(parent, {})' resolves to an overload set. Enabling case B which tries to call the other overload compiles but causes a stackoverflow because the overload calls itself. Enabling case C that swaps the declaration order produces the correct mangle and error message.

@Spoov created dlang/dmd pull request #16186 "Fix Bugzilla 23786 - __traits(parent, {}) in overloaded function prod…" fixing this issue: - Fix Bugzilla 23786 - __traits(parent, {}) in overloaded function produces wierd results dependent on declaration order https://github.com/dlang/dmd/pull/16186

dlang/dmd pull request #16186 "Fix Bugzilla 23786 - __traits(parent, {}) in overloaded function prod…" was merged into master: - afee0f34b9898afb842a375969d938311a775829 by Spoov: Fix Bugzilla 23786 - __traits(parent, {}) in overloaded function produces wierd results dependent on declaration order https://github.com/dlang/dmd/pull/16186