Allow removing trivial property accessor body when the accessor can not be fully deleted in redundant getter/setter inspections

compiler/psi/src/org/jetbrains/kotlin/psi/KtPropertyAccessor.java

@@ -157,8 +157,13 @@ public class KtPropertyAccessor extends KtDeclarationStub<KotlinPropertyAccessor
     }
 
     @Nullable
-    public ASTNode getRightParenthesis() {
-        return getNode().findChildByType(KtTokens.RPAR);
+    public PsiElement getRightParenthesis() {
+        return findChildByType(KtTokens.RPAR);
+    }
+
+    @Nullable
+    public PsiElement getLeftParenthesis() {
+        return findChildByType(KtTokens.LPAR);
     }
 
     @Nullable