syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // Note that this method could then never be called, so we
context_before:                     // do not hold for this particular set of type parameters.
context_after:                     // do not want to try and codegen it, in that case (see #23435).