e1 [lwr .. upr]
http://dlang.org/spec/expression.html#slice_expressions
The type for a unary expression is incompatible. Print error message.
Mark the operand as will never be dereferenced, which is useful info for @safe checks. Do before semantic() on operands rewrites them.
See Implementation
e1 [lwr .. upr]
http://dlang.org/spec/expression.html#slice_expressions