Fix `1.76` clippies (#1626)

solang-parser/src/lexer.rs

@@ -190,9 +190,9 @@ impl<'input> fmt::Display for Token<'input> {
             Token::StringLiteral(true, s) => write!(f, "unicode\"{s}\""),
             Token::HexLiteral(hex) => write!(f, "{hex}"),
             Token::AddressLiteral(address) => write!(f, "{address}"),
-            Token::Number(integer, exp) if exp.is_empty() => write!(f, "{integer}"),
+            Token::Number(integer, "") => write!(f, "{integer}"),
             Token::Number(integer, exp) => write!(f, "{integer}e{exp}"),
-            Token::RationalNumber(integer, fraction, exp) if exp.is_empty() => {
+            Token::RationalNumber(integer, fraction, "") => {
                 write!(f, "{integer}.{fraction}")
             }
             Token::RationalNumber(integer, fraction, exp) => {

src/bin/idl/mod.rs

@@ -386,7 +386,7 @@ fn program_id(idl: &Idl) -> Option<&String> {
 /// There are many keywords in Solidity which are not keywords in Rust, so they may
 /// occur as field name, function name, etc. Rename those fields by prepending
 /// underscores until unique
-fn rename_keywords(name_map: &mut Vec<(String, String)>) {
+fn rename_keywords(name_map: &mut [(String, String)]) {
     for i in 0..name_map.len() {
         let name = &name_map[i].0;