syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // A negative value will be *at least* 128 after the cast (that's i8::MIN),
context_before:                 // type and do that same comparison.
context_after:                 // and 128 is an overflowing shift amount for all our currently existing types,