Load default values for annotation members from classfiles

so that defaults are available to synthetic implementations.

#KT-48181 Fixed

Implementation is for JVM IR; other backends & FIR need to be supported
separately.

compiler/testData/codegen/box/annotations/instances/multimoduleCreation.kt

@@ -0,0 +1,66 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+// TARGET_BACKEND: JVM_IR
+// IGNORE_DEXING
+// WITH_RUNTIME
+// !LANGUAGE: +InstantiationOfAnnotationClasses
+
+// MODULE: lib
+// FILE: lib.kt
+
+package a
+
+import kotlin.reflect.KClass
+
+annotation class A(val kClass: KClass<*> = Int::class)
+
+annotation class OtherArrays(
+    val doublesArray: DoubleArray = [],
+    val enumArray: Array<kotlin.text.RegexOption> = [],
+    val annotationsArray: Array<JvmStatic> = [],
+    val namesArray: Array<JvmName> = [JvmName("foo")]
+)
+
+// Uncomment when KT-49998 is resolved
+//annotation class UnsignedValue(
+//    val uint: UInt = 2147483657U // Int.MAX_VALUE + 10
+//)
+
+// MODULE: app(lib)
+// FILE: app.kt
+
+// kotlin.Metadata: IntArray, Array<String>
+// kotlin.Deprecated: Nested annotation, enum instance
+// a.A: KClass
+// a.OtherArrays: Arrays of enums and other annotations
+
+package test
+
+import a.*
+import kotlin.test.*
+
+class C {
+    fun one(): A = A()
+    fun two(): Metadata = Metadata()
+    fun three(): Deprecated = Deprecated("foo")
+    fun four(): OtherArrays = OtherArrays()
+//    fun five(): UnsignedValue = UnsignedValue()
+}
+
+fun box(): String {
+    val a = C().one()
+    assertEquals(Int::class, a.kClass)
+    assertEquals(
+        """@kotlin.Metadata(bytecodeVersion=[1, 0, 3], data1=[], data2=[], extraInt=0, extraString=, kind=1, metadataVersion=[], packageName=)""",
+        C().two().toString()
+    )
+    assertEquals(
+        """@kotlin.Deprecated(level=WARNING, message=foo, replaceWith=@kotlin.ReplaceWith(expression=, imports=[]))""",
+        C().three().toString()
+    )
+    assertEquals(
+        """@a.OtherArrays(annotationsArray=[], doublesArray=[], enumArray=[], namesArray=[@kotlin.jvm.JvmName(name=foo)])""",
+        C().four().toString()
+    )
+//    assertEquals(Int.MAX_VALUE.toUInt() + 10.toUInt(), C().five().uint)
+    return "OK"
+}