Release v0.2.0

[dak2]

Motivation

Release v0.2.0 with significant type inference coverage improvements since v0.1.10.

Changes

• Bump version to 0.2.0 (version.rb, Cargo.toml x2, Gemfile.lock)
• Update CHANGELOG.md with all changes since v0.1.10

New features in v0.2.0

• Pattern matching type inference (Add pattern matching type inference #103)
• Lambda/Proc type inference (Add Lambda/Proc type inference support #104)
• Compound assignment type inference (Add compound assignment type inference #105)
• defined? type inference (Add defined? type inference support #106)
• yield type inference (Add yield type inference support #107)
• Control flow keywords (break, next, retry, redo) (Add control flow keyword support #108)
• Backtick string type inference (Add backtick string type inference #109)
• Predicate type propagation to pattern variables (Propagate predicate types to pattern variables #110)
• Constant type inference (Add constant type inference support #102)
• Global variable ($var) type tracking (Add global variable ($var) type tracking #100)
• Class variable (@@var) type tracking (Add class variable type tracking #99)

Fixes

• Fix uninitialized @@var reads skipping downstream type checking (Fix uninitialized @@var reads silently skipping downstream type checking #101)
• Fix release workflow dispatch (Fix release workflow dispatch after tag creation #88)

Checked

• cargo test --lib passes
• cargo clippy clean
• Bumped versions
• CHANGELOG.md updated