Experimental fixes: introduce "Add @UseExperimental" #KT-22760 Fixed

idea/testData/quickfix/experimental/basicFunctionNotApplicable.kt

@@ -2,6 +2,7 @@
 // COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
 // WITH_RUNTIME
 // ACTION: Add '@MyExperimentalAPI' annotation to containing class 'Bar'
+// ACTION: Add '@UseExperimental(MyExperimentalAPI::class)' annotation to 'bar'
 // ERROR: This declaration is experimental and its usage must be marked with '@MyExperimentalAPI' or '@UseExperimental(MyExperimentalAPI::class)'
 // ERROR: This declaration is experimental and its usage must be marked with '@MyExperimentalAPI' or '@UseExperimental(MyExperimentalAPI::class)'
 

idea/testData/quickfix/experimental/basicUseExperimental.kt

@@ -0,0 +1,20 @@
+// "Add '@UseExperimental(MyExperimentalAPI::class)' annotation to 'bar'" "true"
+// COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
+// WITH_RUNTIME
+
+package a.b
+
+@Experimental
+@Target(AnnotationTarget.CLASS)
+annotation class MyExperimentalAPI
+
+@MyExperimentalAPI
+class Some {
+    fun foo() {}
+}
+
+class Bar {
+    fun bar() {
+        Some().foo<caret>()
+    }
+}

idea/testData/quickfix/experimental/basicUseExperimental.kt.after

@@ -0,0 +1,21 @@
+// "Add '@UseExperimental(MyExperimentalAPI::class)' annotation to 'bar'" "true"
+// COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
+// WITH_RUNTIME
+
+package a.b
+
+@Experimental
+@Target(AnnotationTarget.CLASS)
+annotation class MyExperimentalAPI
+
+@MyExperimentalAPI
+class Some {
+    fun foo() {}
+}
+
+class Bar {
+    @UseExperimental(MyExperimentalAPI::class)
+    fun bar() {
+        Some().foo()
+    }
+}

idea/testData/quickfix/experimental/classUseExperimental.kt

@@ -0,0 +1,18 @@
+// "Add '@UseExperimental(MyExperimentalAPI::class)' annotation to containing class 'Bar'" "true"
+// COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
+// WITH_RUNTIME
+
+package a.b
+
+@Experimental
+@Target(AnnotationTarget.FUNCTION)
+annotation class MyExperimentalAPI
+
+@MyExperimentalAPI
+fun foo() {}
+
+class Bar {
+    fun bar() {
+        foo<caret>()
+    }
+}

idea/testData/quickfix/experimental/classUseExperimental.kt.after

@@ -0,0 +1,19 @@
+// "Add '@UseExperimental(MyExperimentalAPI::class)' annotation to containing class 'Bar'" "true"
+// COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
+// WITH_RUNTIME
+
+package a.b
+
+@Experimental
+@Target(AnnotationTarget.FUNCTION)
+annotation class MyExperimentalAPI
+
+@MyExperimentalAPI
+fun foo() {}
+
+@UseExperimental(MyExperimentalAPI::class)
+class Bar {
+    fun bar() {
+        foo()
+    }
+}

idea/testData/quickfix/experimental/override.kt

@@ -2,6 +2,8 @@
 // COMPILER_ARGUMENTS: -Xuse-experimental=kotlin.Experimental
 // WITH_RUNTIME
 // ACTION: Add '@MyExperimentalAPI' annotation to 'foo'
+// ACTION: Add '@UseExperimental(MyExperimentalAPI::class)' annotation to 'foo'
+// ACTION: Add '@UseExperimental(MyExperimentalAPI::class)' annotation to containing class 'Derived'
 // ERROR: This declaration overrides experimental member of supertype 'Base' and must be annotated with '@MyExperimentalAPI'
 
 @Experimental