syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"visit::walk_block(this,"}]}
source_snippet:                     visit::walk_block(this, block)
context_before:                 self.in_safety_context(SafetyContext::BuiltinUnsafeBlock, |this| {
context_after:                 });