syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // that we want callers and callees to always agree on the
context_before:                     // This is a fun case! The gist of what this is doing is
context_after:                     // ABI of how they pass SIMD arguments. If we were to *not*