syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"tcx.reserve_and_set_memory_alloc(tcx.mk_const_alloc(vtable))"}]}
source_snippet:     tcx.reserve_and_set_memory_alloc(tcx.mk_const_alloc(vtable))
context_before:     vtable.mutability = Mutability::Not;
context_after: }