syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"BlockSafety::BuiltinUnsafe"}]}
source_snippet:                     BlockSafety::BuiltinUnsafe
context_before:                 hir::BlockCheckMode::UnsafeBlock(hir::UnsafeSource::CompilerGenerated) => {
context_after:                 }