Support JvmPackageName with JvmMultifileClass

This is an internal feature of our standard library needed to compile
new API for unsigned types

compiler/testData/codegen/box/jvmPackageName/multifileClass.kt

@@ -0,0 +1,41 @@
+// IGNORE_BACKEND: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+// FILE: A1.kt
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:JvmPackageName("baz.foo.quux.bar")
+@file:JvmName("Facade")
+@file:JvmMultifileClass
+package foo.bar
+
+val g: S? get() = f().substring(0, 0) + "K"
+
+// FILE: A2.kt
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:JvmPackageName("baz.foo.quux.bar")
+@file:JvmName("Facade")
+@file:JvmMultifileClass
+package foo.bar
+
+inline fun <T> i(block: () -> T): T = block()
+
+// FILE: A3.kt
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:JvmPackageName("baz.foo.quux.bar")
+@file:JvmName("Facade")
+@file:JvmMultifileClass
+package foo.bar
+
+typealias S = String
+
+fun f(): String = "O"
+
+// FILE: B.kt
+
+import foo.bar.*
+
+fun box(): S = i { f() + g }

compiler/testData/compileKotlinAgainstKotlin/jvmPackageNameMultifileClass.kt

@@ -0,0 +1,25 @@
+// IGNORE_BACKEND: JVM_IR
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+// FILE: A.kt
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:JvmPackageName("baz.foo.quux.bar")
+@file:JvmName("Facade")
+@file:JvmMultifileClass
+package foo.bar
+
+typealias S = String
+
+fun f(): String = "O"
+
+val g: S? get() = f().substring(0, 0) + "K"
+
+inline fun <T> i(block: () -> T): T = block()
+
+// FILE: B.kt
+
+import foo.bar.*
+
+fun box(): S = i { f() + g }

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmPackageName/incorrectJvmPackageName.kt

@@ -1,11 +1,5 @@
 // !DIAGNOSTICS: -INVISIBLE_MEMBER -INVISIBLE_REFERENCE
 
-// FILE: a.kt
-<!JVM_PACKAGE_NAME_NOT_SUPPORTED_IN_MULTIFILE_CLASSES!>@file:JvmPackageName("a")<!>
-@file:JvmMultifileClass
-package a
-fun a() {}
-
 // FILE: b.kt
 <!JVM_PACKAGE_NAME_CANNOT_BE_EMPTY!>@file:JvmPackageName("")<!>
 package b

compiler/testData/diagnostics/testsWithStdLib/annotations/jvmPackageName/incorrectJvmPackageName.txt

@@ -1,9 +1,5 @@
 package
 
-package a {
-    public fun a(): kotlin.Unit
-}
-
 package b {
     public fun b(): kotlin.Unit
 }

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K1_A.kt

@@ -0,0 +1,7 @@
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmPackageName("j1")
+@file:JvmName("K1")
+@file:JvmMultifileClass
+package k1
+
+fun f1() {}

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K1_B.kt

@@ -0,0 +1,7 @@
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmPackageName("j1")
+@file:JvmName("K1")
+@file:JvmMultifileClass
+package k1
+
+val v2 = Unit

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K1_C.kt

@@ -0,0 +1,7 @@
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmPackageName("j1")
+@file:JvmName("K1")
+@file:JvmMultifileClass
+package k1
+
+typealias T3 = List<String>

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K2_A.kt

@@ -0,0 +1,7 @@
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmPackageName("j2")
+@file:JvmName("K2")
+@file:JvmMultifileClass
+package k2
+
+fun f1() {}

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K2_B.kt

@@ -0,0 +1,7 @@
+@file:Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
+@file:JvmPackageName("j3")
+@file:JvmName("K2")
+@file:JvmMultifileClass
+package k2
+
+val v2 = Unit

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/K2_C.kt

@@ -0,0 +1,5 @@
+@file:JvmName("K2")
+@file:JvmMultifileClass
+package k2
+
+typealias T3 = List<String>

compiler/testData/moduleProtoBuf/jvmPackageNameMultifileClass/module-proto.txt

@@ -0,0 +1,8 @@
+k1
+  j1/K1__K1_AKt (j1/K1)
+  j1/K1__K1_BKt (j1/K1)
+  j1/K1__K1_CKt (j1/K1)
+k2
+  k2/K2__K2_CKt (k2/K2)
+  j2/K2__K2_AKt (j2/K2)
+  j3/K2__K2_BKt (j3/K2)