PSI: Add parentheses around annotated expressions in returns

#KT-8260 Fixed

idea/testData/intentions/convertToBlockBody/annotatedExpr.kt

@@ -0,0 +1,3 @@
+annotation class ann
+
+fun foo(): Int = <caret>@ann 1

idea/testData/intentions/convertToBlockBody/annotatedExpr.kt.after

@@ -0,0 +1,5 @@
+annotation class ann
+
+fun foo(): Int {
+    return (@ann 1)
+}

idea/testData/intentions/convertToBlockBody/labeledExpr.kt

@@ -0,0 +1 @@
+fun foo(): Int = <caret>ann@ 1

idea/testData/intentions/convertToBlockBody/labeledExpr.kt.after

@@ -0,0 +1,3 @@
+fun foo(): Int {
+    return (ann@ 1)
+}

idea/tests/org/jetbrains/kotlin/idea/intentions/IntentionTestGenerated.java

@@ -3523,6 +3523,12 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
             JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/intentions/convertToBlockBody"), Pattern.compile("^([\\w\\-_]+)\\.kt$"), true);
         }
 
+        @TestMetadata("annotatedExpr.kt")
+        public void testAnnotatedExpr() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("idea/testData/intentions/convertToBlockBody/annotatedExpr.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("explicitlyNonUnitFun.kt")
         public void testExplicitlyNonUnitFun() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("idea/testData/intentions/convertToBlockBody/explicitlyNonUnitFun.kt");
@@ -3589,6 +3595,12 @@ public class IntentionTestGenerated extends AbstractIntentionTest {
             doTest(fileName);
         }
 
+        @TestMetadata("labeledExpr.kt")
+        public void testLabeledExpr() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("idea/testData/intentions/convertToBlockBody/labeledExpr.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("nothingFun.kt")
         public void testNothingFun() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("idea/testData/intentions/convertToBlockBody/nothingFun.kt");