trie insertion

cranelift/isle/src/compile.rs

@@ -1,7 +1,7 @@
 //! Compilation process, from AST to Sema to Sequences of Insts.
 
-use crate::{ast, sema, ir, codegen};
 use crate::error::Error;
+use crate::{ast, codegen, sema};
 
 pub fn compile(defs: &ast::Defs) -> Result<codegen::Automata, Error> {
     let mut typeenv = sema::TypeEnv::from_ast(defs)?;