fix: remove usage of sym! macro

It was removed in rust-lang/rust-clippy#14650. We can either call `Symbol::intern()` manually (which is what this commit does), or use the new preinterned symbol system (https://doc.rust-lang.org/nightly/nightly-rustc/rustc_interface/interface/struct.Config.html#structfield.extra_symbols).

Author: BD103

bevy_lint/src/lints/cargo.rs

@@ -3,15 +3,14 @@
 use super::nursery::duplicate_bevy_dependencies::DUPLICATE_BEVY_DEPENDENCIES;
 use crate::declare_bevy_lint_pass;
 use cargo_metadata::MetadataCommand;
-use clippy_utils::sym;
 use rustc_lint::{LateContext, LateLintPass};
 use rustc_session::{config::Input, utils::was_invoked_from_cargo};
 use rustc_span::Symbol;
 
 declare_bevy_lint_pass! {
     pub(crate) Cargo => [DUPLICATE_BEVY_DEPENDENCIES],
     @default = {
-        bevy: Symbol = sym!(bevy),
+        bevy: Symbol = Symbol::intern("bevy"),
     },
 }
 

bevy_lint/src/lints/pedantic/main_return_without_appexit.rs

@@ -35,7 +35,7 @@
 
 use crate::{declare_bevy_lint, declare_bevy_lint_pass, utils::hir_parse::MethodCall};
 use clippy_utils::{
-    diagnostics::span_lint_hir_and_then, is_entrypoint_fn, is_expr_used_or_unified, sym,
+    diagnostics::span_lint_hir_and_then, is_entrypoint_fn, is_expr_used_or_unified,
     ty::match_type, visitors::for_each_expr,
 };
 use rustc_errors::Applicability;
@@ -53,7 +53,7 @@ declare_bevy_lint! {
 declare_bevy_lint_pass! {
     pub(crate) MainReturnWithoutAppExit => [MAIN_RETURN_WITHOUT_APPEXIT],
     @default = {
-        run: Symbol = sym!(run),
+        run: Symbol = Symbol::intern("run"),
     },
 }
 

bevy_lint/src/lints/suspicious/insert_event_resource.rs

@@ -46,7 +46,6 @@ use crate::{
 use clippy_utils::{
     diagnostics::span_lint_and_sugg,
     source::{snippet, snippet_with_applicability},
-    sym,
     ty::{match_type, ty_from_hir_ty},
 };
 use rustc_errors::Applicability;
@@ -65,8 +64,8 @@ declare_bevy_lint! {
 declare_bevy_lint_pass! {
     pub(crate) InsertEventResource => [INSERT_EVENT_RESOURCE],
     @default = {
-        insert_resource: Symbol = sym!(insert_resource),
-        init_resource: Symbol = sym!(init_resource),
+        insert_resource: Symbol = Symbol::intern("insert_resource"),
+        init_resource: Symbol = Symbol::intern("init_resource"),
     },
 }
 

bevy_lint/src/lints/suspicious/insert_unit_bundle.rs

@@ -50,7 +50,7 @@
 //! # bevy::ecs::system::assert_is_system(spawn);
 //! ```
 
-use clippy_utils::{diagnostics::span_lint_hir_and_then, sym, ty::match_type};
+use clippy_utils::{diagnostics::span_lint_hir_and_then, ty::match_type};
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::{LateContext, LateLintPass};
@@ -68,7 +68,7 @@ declare_bevy_lint! {
 declare_bevy_lint_pass! {
     pub(crate) InsertUnitBundle => [INSERT_UNIT_BUNDLE],
     @default = {
-        spawn: Symbol = sym!(spawn),
+        spawn: Symbol = Symbol::intern("spawn"),
     },
 }