Support package level annotations in Java

#KT-10942 In Progress

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/lazy/descriptors/LazyJavaPackageFragment.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.SourceElement
 import org.jetbrains.kotlin.descriptors.impl.PackageFragmentDescriptorImpl
 import org.jetbrains.kotlin.load.java.lazy.LazyJavaResolverContext
+import org.jetbrains.kotlin.load.java.lazy.resolveAnnotations
 import org.jetbrains.kotlin.load.java.structure.JavaClass
 import org.jetbrains.kotlin.load.java.structure.JavaPackage
 import org.jetbrains.kotlin.load.kotlin.KotlinJvmBinaryPackageSourceElement
@@ -48,6 +49,11 @@ class LazyJavaPackageFragment(
             onRecursiveCall = listOf()
     )
 
+    private val packageAnnotations = c.resolveAnnotations(jPackage)
+
+    // Test only method
+    fun getPackageAnnotations() = packageAnnotations
+
     internal fun getSubPackageFqNames(): List<FqName> = subPackages()
 
     internal fun findClassifierByJavaClass(jClass: JavaClass): ClassDescriptor? = scope.javaScope.findClassifierByJavaClass(jClass)

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/structure/javaElements.kt

@@ -63,6 +63,7 @@ fun JavaAnnotationOwner.buildLazyValueForMap() = lazy {
     annotations.associateBy { it.classId?.asSingleFqName() }
 }
 
+interface JavaPackage : JavaElement, JavaAnnotationOwner {
     val fqName: FqName
     val subPackages: Collection<JavaPackage>