syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:             // Can't be caught in typeck if the array length is generic.
context_before:         LayoutCalculatorError::ZeroLengthSimdType => {
context_after:             cx.tcx().dcx().emit_fatal(ZeroLengthSimdType { ty })