syntax_data: {"ast_node_type":"other","tokens":[{"end":92,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // and reversible name mangling. Note, LLVM coverage tools can analyze coverage over
context_before:         // `-C instrument-coverage` implies `-C symbol-mangling-version=v0` - to ensure consistent
context_after:         // multiple runs, including some changes to source code; so mangled names must be consistent