The logical 'and' / 'or' operator, X && Y / X || Y
https://dlang.org/spec/expression.html#andand_expressions
https://dlang.org/spec/expression.html#oror_expressions
The types for a binary expression are incompatible. Print error message.
Mark the operands as will never be dereferenced, which is useful info for @safe checks. Do before semantic() on operands rewrites them.
See Implementation
The logical 'and' / 'or' operator, X && Y / X || Y
https://dlang.org/spec/expression.html#andand_expressions
https://dlang.org/spec/expression.html#oror_expressions