syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"r7:"}]}
source_snippet:         r7: reg = ["r7", "v4"] % frame_pointer_r7,
context_before:         r5: reg = ["r5", "v2"],
context_after:         r8: reg = ["r8", "v5"] % not_thumb1,