syntax_data: {"ast_node_type":"variable","tokens":[{"end":40,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let value_operand = unpack!(
context_before:             // For a non-const, we may need to generate an appropriate `Drop`
context_after:                 block = this.as_operand(block, scope, value, LocalInfo::Boring, NeedsTemporary::No)