syntax_data: {"ast_node_type":"other","tokens":[{"end":52,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // no need for ThinLTO so just return false.
context_before:         // If there's only one codegen unit and LTO isn't enabled then there's
context_after:         if self.codegen_units().as_usize() == 1 {