Added platformStatic annotation

compiler/testData/builtin-classes.txt

@@ -1497,6 +1497,10 @@ public final annotation class noinline : kotlin.Annotation {
     /*primary*/ public constructor noinline()
 }
 
+public final annotation class platformStatic : kotlin.Annotation {
+    /*primary*/ public constructor platformStatic()
+}
+
 public final annotation class suppress : kotlin.Annotation {
     /*primary*/ public constructor suppress(/*0*/ vararg names: kotlin.String /*kotlin.Array<kotlin.String>*/)
     internal final val names: kotlin.Array<kotlin.String>

core/builtins/src/kotlin/Annotations.kt

@@ -23,3 +23,5 @@ public annotation class deprecated(val value: String)
 public annotation class suppress(vararg val names: String)
 
 public annotation class tailRecursive
+
+public annotation class platformStatic

core/descriptors/src/org/jetbrains/jet/lang/types/lang/KotlinBuiltIns.java

@@ -333,6 +333,11 @@ public class KotlinBuiltIns {
         return getBuiltInClassByName("tailRecursive");
     }
 
+    @NotNull
+    public ClassDescriptor getPlatforStaticAnnotationClass() {
+        return getBuiltInClassByName("platformStatic");
+    }
+
     @NotNull
     public ClassDescriptor getDeprecatedAnnotation() {
         return getBuiltInClassByName("deprecated");
@@ -862,6 +867,10 @@ public class KotlinBuiltIns {
         return containsAnnotation(declarationDescriptor, getTailRecursiveAnnotationClass());
     }
 
+    public boolean isPlatformStatic(@NotNull CallableDescriptor callableDescriptor) {
+        return containsAnnotation(callableDescriptor, getPlatforStaticAnnotationClass());
+    }
+
     public boolean isSuppressAnnotation(@NotNull AnnotationDescriptor annotationDescriptor) {
         ClassifierDescriptor classifier = annotationDescriptor.getType().getConstructor().getDeclarationDescriptor();
         return classifier != null && fqNames.suppress.equals(DescriptorUtils.getFqName(classifier));