syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // consistent across all crates and in some contexts the legacy symbol
context_before:         // We are using the v0 symbol mangling scheme here as we need to be
context_after:         // mangling scheme can't be used. For example both the GCC backend and