syntax_data: {"ast_node_type":"other","tokens":[{"end":65,"kind":"keyword","start":0,"text":"default_address_space:"}]}
source_snippet:             default_address_space: rustc_abi::AddressSpace::ZERO,
context_before:             supports_xray: false,
context_after:             small_data_threshold_support: SmallDataThresholdSupport::DefaultForArch,