syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // then do ThinLTO over those codegen units. The logic below will
context_before:         // we enable "auto" ThinLTO where we use multiple codegen units and
context_after:         // either return `No` or `ThinLocal`.