syntax_data: {"ast_node_type":"other","tokens":[{"end":72,"kind":"keyword","start":0,"text":"\"control"}]}
source_snippet:         "control the operation of the MergeFunctions LLVM pass, taking \
context_before:     merge_functions: Option<MergeFunctions> = (None, parse_merge_functions, [TRACKED],
context_after:         the same values as the target option of the same name"),