Add @Target's to kotlin.test annotations

libraries/kotlin.test/annotations-common/src/main/kotlin/kotlin.test/Annotations.kt

@@ -19,19 +19,23 @@ package kotlin.test
 /**
  * Marks a function as a test.
  */
+@Target(AnnotationTarget.FUNCTION)
 public expect annotation class Test()
 
 /**
  * Marks a test or a suite as ignored.
  */
+@Target(AnnotationTarget.CLASS, AnnotationTarget.FUNCTION)
 public expect annotation class Ignore()
 
 /**
  * Marks a function to be invoked before each test.
  */
+@Target(AnnotationTarget.FUNCTION)
 public expect annotation class BeforeTest()
 
 /**
  * Marks a function to be invoked after each test.
  */
+@Target(AnnotationTarget.FUNCTION)
 public expect annotation class AfterTest()

libraries/kotlin.test/js/src/main/kotlin/kotlin/test/Annotations.kt

@@ -19,19 +19,23 @@ package kotlin.test
 /**
  * Marks a function as a test.
  */
+@Target(AnnotationTarget.FUNCTION)
 public annotation class Test
 
 /**
- * Marks a test or a suite as ignored/pending.
+ * Marks a test or a suite as ignored.
  */
+@Target(AnnotationTarget.CLASS, AnnotationTarget.FUNCTION)
 public annotation class Ignore
 
 /**
  * Marks a function to be invoked before each test.
  */
+@Target(AnnotationTarget.FUNCTION)
 public annotation class BeforeTest
 
 /**
  * Marks a function to be invoked after each test.
  */
-public annotation class AfterTest
+@Target(AnnotationTarget.FUNCTION)
+public annotation class AfterTest