syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // in registers, and the rest will be passed in stack.
context_before:     // For argument type, the first 4*XLen parts of aggregate will be passed
context_after:     // So we can coerce to integers directly and let backend handle it correctly.