syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // releases GCC's libstdc++ is default. Unfortunately we can't
context_before:         // On OS X 10.9 and later, LLVM's libc++ is the default. On earlier
context_after:         // reasonably detect which one we need (on older ones libc++ is