Dogfood fixes to use bool::then_some

clippy_utils/src/lib.rs

@@ -1016,7 +1016,7 @@ pub fn can_move_expr_to_closure<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'
         captures: HirIdMap::default(),
     };
     v.visit_expr(expr);
-    v.allow_closure.then(|| v.captures)
+    v.allow_closure.then_some(v.captures)
 }
 
 /// Returns the method names and argument list of nested method call expressions that make up

clippy_utils/src/source.rs

@@ -353,7 +353,7 @@ pub fn snippet_with_context<'a>(
 /// span containing `m!(0)`.
 pub fn walk_span_to_context(span: Span, outer: SyntaxContext) -> Option<Span> {
     let outer_span = hygiene::walk_chain(span, outer);
-    (outer_span.ctxt() == outer).then(|| outer_span)
+    (outer_span.ctxt() == outer).then_some(outer_span)
 }
 
 /// Removes block comments from the given `Vec` of lines.