Enable more clippy lints (#6853)

* Follows https://github.com/emilk/egui/pull/6848

crates/egui_demo_lib/src/demo/code_example.rs

@@ -105,7 +105,7 @@ impl crate::Demo for CodeExample {
     }
 
     fn show(&mut self, ctx: &egui::Context, open: &mut bool) {
-        use crate::View;
+        use crate::View as _;
         egui::Window::new(self.name())
             .open(open)
             .min_width(375.0)

crates/egui_demo_lib/src/demo/demo_app_windows.rs

@@ -3,7 +3,7 @@ use std::collections::BTreeSet;
 use super::About;
 use crate::is_mobile;
 use crate::Demo;
-use crate::View;
+use crate::View as _;
 use egui::containers::menu;
 use egui::style::StyleModifier;
 use egui::{Context, Modifiers, ScrollArea, Ui};
@@ -359,9 +359,9 @@ fn file_menu_button(ui: &mut Ui) {
 
 #[cfg(test)]
 mod tests {
-    use crate::{demo::demo_app_windows::DemoGroups, Demo};
+    use crate::{demo::demo_app_windows::DemoGroups, Demo as _};
     use egui::Vec2;
-    use egui_kittest::kittest::Queryable;
+    use egui_kittest::kittest::Queryable as _;
     use egui_kittest::{Harness, SnapshotOptions, SnapshotResults};
 
     #[test]

crates/egui_demo_lib/src/demo/font_book.rs

@@ -169,7 +169,7 @@ fn char_name(chr: char) -> String {
 }
 
 fn special_char_name(chr: char) -> Option<&'static str> {
-    #[allow(clippy::match_same_arms)] // many "flag"
+    #[expect(clippy::match_same_arms)] // many "flag"
     match chr {
         // Special private-use-area extensions found in `emoji-icon-font.ttf`:
         // Private use area extensions:

crates/egui_demo_lib/src/demo/interactive_container.rs

@@ -1,4 +1,4 @@
-use egui::{Frame, Label, RichText, Sense, UiBuilder, Widget};
+use egui::{Frame, Label, RichText, Sense, UiBuilder, Widget as _};
 
 /// Showcase [`egui::Ui::response`].
 #[derive(PartialEq, Eq, Default)]

crates/egui_demo_lib/src/demo/modals.rs

@@ -1,4 +1,4 @@
-use egui::{ComboBox, Context, Id, Modal, ProgressBar, Ui, Widget, Window};
+use egui::{ComboBox, Context, Id, Modal, ProgressBar, Ui, Widget as _, Window};
 
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]
 #[cfg_attr(feature = "serde", serde(default))]
@@ -163,10 +163,10 @@ impl crate::View for Modals {
 #[cfg(test)]
 mod tests {
     use crate::demo::modals::Modals;
-    use crate::Demo;
+    use crate::Demo as _;
     use egui::accesskit::Role;
     use egui::Key;
-    use egui_kittest::kittest::Queryable;
+    use egui_kittest::kittest::Queryable as _;
     use egui_kittest::{Harness, SnapshotResults};
 
     #[test]

crates/egui_demo_lib/src/demo/paint_bezier.rs

@@ -2,7 +2,7 @@ use egui::{
     emath,
     epaint::{self, CubicBezierShape, PathShape, QuadraticBezierShape},
     pos2, Color32, Context, Frame, Grid, Pos2, Rect, Sense, Shape, Stroke, StrokeKind, Ui, Vec2,
-    Widget, Window,
+    Widget as _, Window,
 };
 
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]

crates/egui_demo_lib/src/demo/password.rs

@@ -8,7 +8,6 @@
 /// ``` ignore
 /// password_ui(ui, &mut my_password);
 /// ```
-#[allow(clippy::ptr_arg)] // false positive
 pub fn password_ui(ui: &mut egui::Ui, password: &mut String) -> egui::Response {
     // This widget has its own state — show or hide password characters (`show_plaintext`).
     // In this case we use a simple `bool`, but you can also declare your own type.

crates/egui_demo_lib/src/demo/screenshot.rs

@@ -1,4 +1,4 @@
-use egui::{Image, UserData, ViewportCommand, Widget};
+use egui::{Image, UserData, ViewportCommand, Widget as _};
 use std::sync::Arc;
 
 /// Showcase [`ViewportCommand::Screenshot`].

crates/egui_demo_lib/src/demo/scrolling.rs

@@ -1,6 +1,6 @@
 use egui::{
-    pos2, scroll_area::ScrollBarVisibility, Align, Align2, Color32, DragValue, NumExt, Rect,
-    ScrollArea, Sense, Slider, TextStyle, TextWrapMode, Ui, Vec2, Widget,
+    pos2, scroll_area::ScrollBarVisibility, Align, Align2, Color32, DragValue, NumExt as _, Rect,
+    ScrollArea, Sense, Slider, TextStyle, TextWrapMode, Ui, Vec2, Widget as _,
 };
 
 #[cfg_attr(feature = "serde", derive(serde::Deserialize, serde::Serialize))]

crates/egui_demo_lib/src/demo/tests/tessellation_test.rs

@@ -1,5 +1,5 @@
 use egui::{
-    emath::{GuiRounding, TSTransform},
+    emath::{GuiRounding as _, TSTransform},
     epaint::{self, RectShape},
     vec2, Color32, Pos2, Rect, Sense, StrokeKind, Vec2,
 };

crates/egui_demo_lib/src/demo/text_edit.rs

@@ -114,7 +114,7 @@ impl crate::View for TextEditDemo {
 #[cfg(test)]
 mod tests {
     use egui::{accesskit, CentralPanel};
-    use egui_kittest::kittest::{Key, Queryable};
+    use egui_kittest::kittest::{Key, Queryable as _};
     use egui_kittest::Harness;
 
     #[test]

crates/egui_demo_lib/src/demo/toggle_switch.rs

@@ -76,7 +76,7 @@ pub fn toggle_ui(ui: &mut egui::Ui, on: &mut bool) -> egui::Response {
 }
 
 /// Here is the same code again, but a bit more compact:
-#[allow(dead_code)]
+#[expect(dead_code)]
 fn toggle_ui_compact(ui: &mut egui::Ui, on: &mut bool) -> egui::Response {
     let desired_size = ui.spacing().interact_size.y * egui::vec2(2.0, 1.0);
     let (rect, mut response) = ui.allocate_exact_size(desired_size, egui::Sense::click());

crates/egui_demo_lib/src/demo/widget_gallery.rs

@@ -48,7 +48,7 @@ impl Default for WidgetGallery {
 }
 
 impl WidgetGallery {
-    #[allow(unused_mut)] // if not chrono
+    #[allow(unused_mut, clippy::allow_attributes)] // if not chrono
     #[inline]
     pub fn with_date_button(mut self, _with_date_button: bool) -> Self {
         #[cfg(feature = "chrono")]
@@ -308,7 +308,7 @@ fn doc_link_label_with_crate<'a>(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::View;
+    use crate::View as _;
     use egui::Vec2;
     use egui_kittest::Harness;