syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"regparm:"}]}
source_snippet:     regparm: Option<u32> = (None, parse_opt_number, [TRACKED TARGET_MODIFIER],
context_before:         It is UNSOUND to link together crates that use different values for this flag!"),
context_after:         "On x86-32 targets, setting this to N causes the compiler to pass N arguments \