KT-8011 Compiler crashes on attempt to create local class inside lambda

- use StackValue from upper-level context if local lookup fails

 #KT-8011 Fixed

compiler/testData/codegen/boxWithStdlib/classes/kt8011.kt

@@ -0,0 +1,17 @@
+fun testFun1(str: String): String {
+    val local = str
+
+    class Local {
+        fun foo() = str
+    }
+
+    val list = listOf(0).map { Local() }
+    return list[0].foo()
+}
+
+fun box(): String {
+    return when {
+        testFun1("test1") != "test1" -> "Fail #1"
+        else -> "OK"
+    }
+}