syntax_data: {"ast_node_type":"other","tokens":[{"end":30,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // ft0-ft7
context_before:                     x10, x11, x12, x13, x14, x15,
context_after:                     f0, f1, f2, f3, f4, f5, f6, f7,