fix(warn): 修复部分编译器警告.

Author: xiaoyi1212

src/compiler/ast/ssa_ir.rs

@@ -59,7 +59,6 @@ impl Code {
 
     pub fn alloc_value(
         &mut self,
-        value: Operand,
         token: Token,
         type_: ValueGuessType,
     ) -> DefaultKey {

src/compiler/parser/symbol_table.rs

@@ -1,5 +1,3 @@
-use crate::compiler::lexer::Token;
-use crate::compiler::parser::ParserError;
 use smol_str::SmolStr;
 use std::cmp::PartialEq;
 

src/compiler/semantic/varsemantic.rs

@@ -20,6 +20,6 @@ pub fn var_semantic(
     symbol_table.add_element(name.value().unwrap(), VALUE);
     let ret_m = expr_semantic(semantic, init_var)?;
     let opread = ret_m.clone();
-    let key = code.alloc_value(ret_m.0, name, ret_m.1);
+    let key = code.alloc_value(name, ret_m.1);
     Ok(StackLocal(key, opread.0))
 }