platform: add DynamicallyLoaded annotation (IDEA-181981)

platform/core-api/src/com/intellij/ide/plugins/DynamicallyLoaded.java

@@ -0,0 +1,17 @@
+// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.intellij.ide.plugins;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+/**
+ * Indicates classes/interfaces which are packaged into the plugin's JAR files but aren't statically referenced from main plugin classes.
+ * Such classes may be loaded either by custom classloaders or by the standard plugin classloader but only if some conditions are met
+ * (e.g. the plugin is running under a specific version of the IDE). Classes marked with this annotation will be excluded from bytecode
+ * verification procedures because they may contain references to classes which aren't available in the plugin's code and libraries.
+ *
+ * @author nik
+ */
+@Target(ElementType.TYPE)
+public @interface DynamicallyLoaded {
+}