syntax_data: {"ast_node_type":"other","tokens":[{"end":91,"kind":"keyword","start":0,"text":"hir::BlockCheckMode::UnsafeBlock(hir::UnsafeSource::CompilerGenerated)"}]}
source_snippet:                 hir::BlockCheckMode::UnsafeBlock(hir::UnsafeSource::CompilerGenerated) => {
context_before:                 hir::BlockCheckMode::DefaultBlock => BlockSafety::Safe,
context_after:                     BlockSafety::BuiltinUnsafe