syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":".temporary_scope(self.region_scope_tree,"}]}
source_snippet:                             .temporary_scope(self.region_scope_tree, arg_expr.hir_id.local_id);
context_before:                             .rvalue_scopes
context_after:                         arg = self.thir.exprs.push(Expr {