syntax_data: {"ast_node_type":"other","tokens":[{"end":40,"kind":"keyword","start":0,"text":"_:"}]}
source_snippet:                         _: I8, I16, I32;
context_before:                     types! {
context_after:                         // FIXME: i64 is ok for g*/o* registers on SPARC-V8+ ("h" constraint in GCC),