JVM_IR KT-47120 treat outer name as case-insensitive for local classes

compiler/testData/codegen/box/closures/kt47120.kt

@@ -0,0 +1,17 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// FULL_JDK
+import java.util.*
+
+fun box(): String {
+    fun f() = {}
+    fun F() = {}
+
+    val class1 = f().javaClass.name
+    val class2 = F().javaClass.name
+
+    if (class1.uppercase(Locale.ENGLISH) != class2.uppercase(Locale.ENGLISH))
+        return "OK"
+    else
+        return "$class1 $class2"
+}

compiler/testData/codegen/box/closures/kt47120a.kt

@@ -0,0 +1,24 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+// FULL_JDK
+import java.util.*
+
+fun box(): String {
+    fun f(): Any {
+        fun g() = object {}
+        return g()
+    }
+
+    fun F(): Any {
+        fun g() = object {}
+        return g()
+    }
+
+    val class1 = f().javaClass.name
+    val class2 = F().javaClass.name
+
+    if (class1.uppercase(Locale.ENGLISH) != class2.uppercase(Locale.ENGLISH))
+        return "OK"
+    else
+        return "$class1 $class2"
+}