Adding string and number should be compile error

[TwitchBronBron]

With the new type validations in v0.66.0, this should be a compile error because you can't add a string and an int.

[markwpearce]

In scope validate’s ast walk, visit binaryOperator expressions, and if LHS and RHS are not dynamic type, and the util function that finds binary operator results return dynamic type, then raise a new diagnostic… Something like “Operator $operator can not be used with types $lhs and $rhs”

[markwpearce]

Solved in https://github.com/rokucommunity/brighterscript/commit/7cafaf12219dcfa73b3e0be04f7acba47b10f93a