Support JvmPackageName annotation in JVM back-end

This annotation is currently internal because we only commit to its
support for our own libraries. It will be used to change JVM package
names of declarations in JDK-specific stdlib additions (now called
kotlin-stdlib-jre7/8), both to preserve source compatibility of the old
Kotlin code and to solve the split package problem (KT-19258)

compiler/testData/codegen/boxInline/jvmPackageName/simple.kt

@@ -0,0 +1,21 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// LANGUAGE_VERSION: 1.2
+
+// FILE: 1.kt
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:JvmPackageName("baz.foo.quux.bar")
+package foo.bar
+
+fun f(): String = "O"
+
+val g: String? get() = "K"
+
+inline fun <T> i(block: () -> T): T = block()
+
+// FILE: 2.kt
+
+import foo.bar.*
+
+fun box(): String = i { f() + g }