syntax_data: {"ast_node_type":"other","tokens":[{"end":31,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// megabytes (2^20 bytes).
context_before:     /// Same as thinlto_codegen_set_cache_size_bytes, except the maximum size is in
context_after:     pub fn thinlto_codegen_set_cache_size_megabytes(