Support test with self imports, kotlin multifile tests

compiler/testData/codegen/box/syntheticAccessors/protectedFromLambda.kt

@@ -1,12 +1,13 @@
 // FILE: A.kt
 
 package first
+import second.C
 
 open class A {
     protected open fun test(): String = "FAIL (A)"
 }
 
-fun box() = second.C().value()
+fun box() = C().value()
 
 // FILE: B.kt
 

compiler/testData/codegen/boxInline/innerClasses/innerLambda.kt

@@ -28,5 +28,5 @@ fun box(): String {
 
     foo2()().run()
 
-    return test.sideEffects
+    return sideEffects
 }

compiler/testData/codegen/boxInline/multifileClasses/inlineFromOptimizedMultifileClass.kt

@@ -17,6 +17,6 @@ import a.foo
 import a.inlineOnly
 
 fun box(): String {
-    if (!a.inlineOnly<String>("OK")) return "fail 1"
+    if (!inlineOnly<String>("OK")) return "fail 1"
    return foo { "OK" }
 }

compiler/testData/codegen/boxInline/multifileClasses/inlineFromOtherPackage.kt

@@ -15,6 +15,6 @@ import a.foo
 import a.inlineOnly
 
 fun box(): String {
-    if (!a.inlineOnly<String>("OK")) return "fail 1"
+    if (!inlineOnly<String>("OK")) return "fail 1"
    return foo { "OK" }
 }