syntax_data: {"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // matching the odd negative feature LLVM uses?
context_before:     // FIXME before stabilization: Should we expose this as a `hard-float` target feature instead of
context_after:     ("soft-float", Unstable(sym::arm_target_feature), &[]),