Drop package facades:

- getting rid of package facades in InlineCodegen & related stuff.
Provide binary source element to top-level package members.

compiler/frontend.java/src/org/jetbrains/kotlin/fileClasses/JvmFileClassUtil.kt

@@ -20,6 +20,7 @@ import com.google.protobuf.MessageLite
 import com.intellij.psi.util.CachedValueProvider
 import com.intellij.psi.util.CachedValuesManager
 import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
+import org.jetbrains.kotlin.load.java.descriptors.getImplClassName
 import org.jetbrains.kotlin.load.kotlin.PackageClassUtils
 import org.jetbrains.kotlin.load.kotlin.PackagePartClassUtils
 import org.jetbrains.kotlin.name.FqName
@@ -70,24 +71,11 @@ public object JvmFileClassUtil {
 
     @JvmStatic
     public fun getImplClassName(callable: DeserializedCallableMemberDescriptor): Name? =
-            getImplClassName(callable.proto, callable.nameResolver)
+            callable.getImplClassName()
 
     @JvmStatic
     public fun getImplClassName(proto: MessageLite, nameResolver: NameResolver): Name? =
-            when (proto) {
-                is ProtoBuf.Constructor ->
-                    null
-                is ProtoBuf.Function ->
-                    if (proto.hasExtension(JvmProtoBuf.methodImplClassName))
-                        proto.getExtension(JvmProtoBuf.methodImplClassName)
-                    else null
-                is ProtoBuf.Property ->
-                    if (proto.hasExtension(JvmProtoBuf.propertyImplClassName))
-                        proto.getExtension(JvmProtoBuf.propertyImplClassName)
-                    else null
-                else ->
-                    error("Unknown message: $proto")
-            }?.let { nameResolver.getName(it) }
+            getImplClassName(proto, nameResolver)
 
     @JvmStatic
     public fun getHiddenPartFqName(file: JetFile, jvmFileClassAnnotations: ParsedJmvFileClassAnnotations): FqName =

compiler/frontend.java/src/org/jetbrains/kotlin/load/kotlin/moduleVisibilityUtils.kt

@@ -46,14 +46,21 @@ public fun isContainedByCompiledPartOfOurModule(descriptor: DeclarationDescripto
     if (outDirectory == null || packageFragment !is LazyJavaPackageFragment) return false
 
     val source = getSourceElement(descriptor)
-    if (source is KotlinJvmBinarySourceElement) {
-        val binaryClass = source.binaryClass
-        if (binaryClass is VirtualFileKotlinClass) {
-            val file = binaryClass.file
-            if (file.fileSystem.protocol == StandardFileSystems.FILE_PROTOCOL) {
-                val ioFile = VfsUtilCore.virtualToIoFile(file)
-                return ioFile.absolutePath.startsWith(outDirectory.absolutePath + File.separator);
-            }
+
+    val binaryClass = when (source) {
+        is KotlinJvmBinarySourceElement ->
+            source.binaryClass
+        is KotlinJvmBinaryPackageSourceElement ->
+            source.getRepresentativeBinaryClass()
+        else ->
+            null
+    }
+
+    if (binaryClass is VirtualFileKotlinClass) {
+        val file = binaryClass.file
+        if (file.fileSystem.protocol == StandardFileSystems.FILE_PROTOCOL) {
+            val ioFile = VfsUtilCore.virtualToIoFile(file)
+            return ioFile.absolutePath.startsWith(outDirectory.absolutePath + File.separator);
         }
     }