✨ feat(typechecker): add Hindley-Milner type inference crate #850
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Introduces a new mq-typechecker crate that implements static type checking and type inference for the mq language using the Hindley-Milner algorithm. Key features: - Automatic type inference without requiring type annotations - Support for polymorphic functions and type variables - Integration with mq-hir for symbol and scope information - Comprehensive error reporting with source location spans - Built-in type signatures for operators and common functions Architecture: - types.rs: Type system representation and type schemes - constraint.rs: Type constraint generation from HIR - unify.rs: Unification algorithm implementation - infer.rs: Inference engine coordination This lays the foundation for static type checking in mq and will enable better error detection, IDE support, and code optimization.
…mprehensive tests
… and update logical operator tests
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Introduces a new mq-typechecker crate that implements static type checking and type inference for the mq language using the Hindley-Milner algorithm.