syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"r8:"}]}
source_snippet:         r8: reg = ["r8", "v5"] % not_thumb1,
context_before:         r7: reg = ["r7", "v4"] % frame_pointer_r7,
context_after:         r9: reg = ["r9", "v6", "rfp"] % reserved_r9,