remove more redundant clones (clippy::redundant_clone())

Author: matthiaskrgr

crates/hir_def/src/resolver.rs

@@ -472,7 +472,7 @@ impl Scope {
             }
             Scope::ExprScope(scope) => {
                 if let Some((label, name)) = scope.expr_scopes.label(scope.scope_id) {
-                    f(name.clone(), ScopeDef::Label(label))
+                    f(name, ScopeDef::Label(label))
                 }
                 scope.expr_scopes.entries(scope.scope_id).iter().for_each(|e| {
                     f(e.name().clone(), ScopeDef::Local(e.pat()));

crates/hir_expand/src/db.rs

@@ -173,7 +173,7 @@ fn macro_arg_text(db: &dyn AstDatabase, id: MacroCallId) -> Option<GreenNode> {
     };
     let loc = db.lookup_intern_macro(id);
     let arg = loc.kind.arg(db)?;
-    Some(arg.green().to_owned())
+    Some(arg.green())
 }
 
 fn macro_arg(db: &dyn AstDatabase, id: MacroCallId) -> Option<Arc<(tt::Subtree, mbe::TokenMap)>> {

crates/hir_ty/src/lower.rs

@@ -946,8 +946,7 @@ pub(crate) fn trait_environment_query(
         let substs = Substitution::type_params(db, trait_id);
         let trait_ref = TraitRef { trait_id: to_chalk_trait_id(trait_id), substitution: substs };
         let pred = WhereClause::Implemented(trait_ref);
-        let program_clause: chalk_ir::ProgramClause<Interner> =
-            pred.clone().to_chalk(db).cast(&Interner);
+        let program_clause: chalk_ir::ProgramClause<Interner> = pred.to_chalk(db).cast(&Interner);
         clauses.push(program_clause.into_from_env_clause(&Interner));
     }
 

crates/syntax/src/algo.rs

@@ -567,7 +567,7 @@ impl<'a> SyntaxRewriter<'a> {
 
 fn element_to_green(element: SyntaxElement) -> NodeOrToken<rowan::GreenNode, rowan::GreenToken> {
     match element {
-        NodeOrToken::Node(it) => NodeOrToken::Node(it.green().to_owned()),
+        NodeOrToken::Node(it) => NodeOrToken::Node(it.green()),
         NodeOrToken::Token(it) => NodeOrToken::Token(it.green().to_owned()),
     }
 }
@@ -625,7 +625,7 @@ fn position_of_child(parent: &SyntaxNode, child: SyntaxElement) -> usize {
 
 fn to_green_element(element: SyntaxElement) -> NodeOrToken<rowan::GreenNode, rowan::GreenToken> {
     match element {
-        NodeOrToken::Node(it) => it.green().to_owned().into(),
+        NodeOrToken::Node(it) => it.green().into(),
         NodeOrToken::Token(it) => it.green().to_owned().into(),
     }
 }

crates/syntax/src/ast/make.rs

@@ -532,7 +532,7 @@ fn ast_from_text<N: AstNode>(text: &str) -> N {
 }
 
 fn unroot(n: SyntaxNode) -> SyntaxNode {
-    SyntaxNode::new_root(n.green().to_owned())
+    SyntaxNode::new_root(n.green())
 }
 
 pub mod tokens {