Migrate boxInline tests to new multi-file framework

compiler/testData/codegen/boxInline/syntheticAccessors/withinInlineLambda/privateInCrossInline.kt

@@ -0,0 +1,41 @@
+// FILE: 1.kt
+
+package test
+
+inline fun call(crossinline s: () -> String): String {
+    return {
+        s()
+    }()
+}
+
+// FILE: 2.kt
+
+//NO_CHECK_LAMBDA_INLINING
+import test.*
+
+class A {
+
+    private fun method() = "O"
+
+    private val prop = "K"
+
+    fun test1(): String {
+        return call {
+            method() + prop
+        }
+    }
+
+    fun test2(): String {
+        return call {
+            call {
+                method() + prop
+            }
+        }
+    }
+}
+
+fun box(): String {
+    val a = A()
+    if (a.test1() != "OK") return "fail 1: ${a.test1()}"
+    return a.test2()
+}