syntax_data: {"ast_node_type":"other","tokens":[{"end":55,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                     // way we don't need to clobber it.
context_before:                     // r9 is either platform-reserved or callee-saved. Either
context_after:                     r0, r1, r2, r3, r12, r14,