syntax_data: {"ast_node_type":"other","tokens":[{"end":60,"kind":"keyword","start":0,"text":"MixedBitSet::new_empty(self.move_data().inits.len())"}]}
source_snippet:         MixedBitSet::new_empty(self.move_data().inits.len())
context_before:         // bottom = no initialized variables by default
context_after:     }