syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // be guaranteed, so we need to disable those. This imitates clang's logic:
context_before:     // x86_64h is core2-avx without a few of the features which would otherwise
context_after:     // - https://github.com/llvm/llvm-project/blob/bd1f7c417/clang/lib/Driver/ToolChains/Arch/X86.cpp#L77-L78