syntax_data: {"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // │binding x       │              │
context_before:                     // │Move value into │      └───────┬────────┘
context_after:                     // └────────┬───────┘      ┌───────▼────────┐