[K/JS, K/Wasm, K/Native] Process anonymous initializers inside classes as a part of their primary constructors ^KT-61929 Fixed

compiler/testData/codegen/box/classes/nestedInitBlocksWithLambda.kt

@@ -0,0 +1,28 @@
+// KT-61929
+// WITH_SDTLIB
+// EXPECTED_REACHABLE_NODES: 1301
+package foo
+
+fun doSomething(lambda: () -> Unit) { lambda() }
+
+class CompilerBug(result: String) {
+    var result: String = "Failed"
+
+    init {
+        run {
+            object {
+                init {
+                    doSomething { completed(result) }
+                }
+            }
+        }
+    }
+
+    fun completed(value: String) {
+        this.result = value
+    }
+}
+
+fun box(): String {
+    return CompilerBug("OK").result
+}