Add "Remove annotation" quickfix for empty @Throws

idea/src/org/jetbrains/kotlin/idea/quickfix/QuickFixRegistrar.kt

@@ -51,6 +51,7 @@ import org.jetbrains.kotlin.psi.KtClassOrObject
 import org.jetbrains.kotlin.psi.KtProperty
 import org.jetbrains.kotlin.resolve.jvm.diagnostics.ErrorsJvm.*
 import org.jetbrains.kotlin.resolve.konan.diagnostics.ErrorsNative.MISSING_EXCEPTION_IN_THROWS_ON_SUSPEND
+import org.jetbrains.kotlin.resolve.konan.diagnostics.ErrorsNative.THROWS_LIST_EMPTY
 
 class QuickFixRegistrar : QuickFixContributor {
     override fun registerQuickFixes(quickFixes: QuickFixes) {
@@ -654,5 +655,6 @@ class QuickFixRegistrar : QuickFixContributor {
         CONFLICTING_JVM_DECLARATIONS.registerFactory(AddJvmNameAnnotationFix)
 
         MISSING_EXCEPTION_IN_THROWS_ON_SUSPEND.registerFactory(AddExceptionToThrowsFix)
+        THROWS_LIST_EMPTY.registerFactory(RemoveAnnotationFix)
     }
 }

idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/addCancellationException3/native/test.kt

@@ -2,6 +2,7 @@
 // ERROR: @Throws must have non-empty class list
 // ACTION: Make internal
 // ACTION: Make private
+// ACTION: Remove annotation
 
 // No compilation error => no quickfix.
 <caret>@Throws()

idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/addCancellationException4/native/test.kt

@@ -2,6 +2,7 @@
 // ERROR: @Throws must have non-empty class list
 // ACTION: Make internal
 // ACTION: Make private
+// ACTION: Remove annotation
 
 // No compilation error => no quickfix.
 <caret>@Throws

idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/removeEmptyThrows/native/kotlin.kt

@@ -0,0 +1,7 @@
+package kotlin
+
+import kotlin.reflect.KClass
+
+@Target(AnnotationTarget.FUNCTION, AnnotationTarget.CONSTRUCTOR)
+@Retention(AnnotationRetention.SOURCE)
+public annotation class Throws(vararg val exceptionClasses: KClass<out Throwable>)

idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/removeEmptyThrows/native/test.kt

@@ -0,0 +1,4 @@
+// "Remove annotation" "true"
+
+<caret>@Throws
+fun removeEmptyThrows() {}

idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/removeEmptyThrows/native/test.kt.after

@@ -0,0 +1,3 @@
+// "Remove annotation" "true"
+
+fun removeEmptyThrows() {}

idea/tests/org/jetbrains/kotlin/idea/quickfix/QuickFixMultiModuleTestGenerated.java

@@ -825,6 +825,11 @@ public class QuickFixMultiModuleTestGenerated extends AbstractQuickFixMultiModul
         public void testAllFilesPresentInFixNativeThrowsErrors() throws Exception {
             KotlinTestUtils.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("idea/testData/multiModuleQuickFix/fixNativeThrowsErrors"), Pattern.compile("^([^\\.]+)$"), null, true);
         }
+
+        @TestMetadata("removeEmptyThrows")
+        public void testRemoveEmptyThrows() throws Exception {
+            runTest("idea/testData/multiModuleQuickFix/fixNativeThrowsErrors/removeEmptyThrows/");
+        }
     }
 
     @TestMetadata("idea/testData/multiModuleQuickFix/makeOverridenMemberOpen")