fix: compile error when using enum in flutter

libs/flutter_rust_bridge_codegen/src/ir/ident.rs

@@ -0,0 +1,26 @@
+use convert_case::{Case, Casing};
+
+#[derive(Debug, Clone)]
+pub struct IrIdent {
+    pub raw: String,
+}
+
+impl std::fmt::Display for IrIdent {
+    fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        fmt.write_str(&self.raw)
+    }
+}
+
+impl IrIdent {
+    pub fn new(raw: String) -> IrIdent {
+        IrIdent { raw }
+    }
+
+    pub fn rust_style(&self) -> &str {
+        &self.raw
+    }
+
+    pub fn dart_style(&self) -> String {
+        self.raw.to_case(Case::Camel)
+    }
+}