@ ProgramNode (location: (0...16))
├── locals: []
└── statements:
    @ StatementsNode (location: (0...16))
    └── body: (length: 1)
        └── @ MatchPredicateNode (location: (0...16))
            ├── value:
            │   @ StringNode (location: (0...6))
            │   ├── opening_loc: (0...1) = "'"
            │   ├── content_loc: (1...5) = "woot"
            │   ├── closing_loc: (5...6) = "'"
            │   └── unescaped: "woot"
            ├── pattern:
            │   @ ConstantReadNode (location: (10...16))
            │   └── name: :String
            └── operator_loc: (7...9) = "in"
