Bug 11458 – initialization of a custom type(using alias this) broken in dmd 2.064.2

regression from dmd 2.063.2 to 2.064.2, initialization of a custom type using alias this. example: -------- struct myType{int _field; alias _field this;} struct myStruct { private: myType dt; public: this (string param) { dt = 0; } } void main(string[] args) { auto MyStruct = myStruct("broken"); } outputs: -------- file.d(11): Error: cannot implicitly convert expression (0) of type int to myType other: ------ verified on Win x86, Linux X86_64.

This is an intended language fix introduced by fixing bug 9665. See also issue 11270 comments. *** This issue has been marked as a duplicate of issue 11270 ***