syntax_data: {"ast_node_type":"other","tokens":[{"end":102,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // determining their size. Therefore, we cannot allow `extern` types here. Consult
context_before:                     // Conceptually, unsized arguments must be copied around, which requires dynamically
context_after:                     // t-opsem before removing this check.