Migration: header->expect & impl->actual in IDEA test data

idea/testData/multiModuleQuickFix/memberValToExtensionByHeaderWithInapplicableImpl/header/header.kt

@@ -4,6 +4,6 @@
 // ACTION: Move to companion object
 // ACTION: Move to constructor
 
-header class Foo {
+expect class Foo {
     val <caret>foo: Int
 }

idea/testData/multiModuleQuickFix/memberValToExtensionByHeaderWithInapplicableImpl/js/js.kt

@@ -1,3 +1,3 @@
-impl class Foo {
-    impl val foo = 1
+actual class Foo {
+    actual val foo = 1
 }

idea/testData/multiModuleQuickFix/memberValToExtensionByHeaderWithInapplicableImpl/jvm/jvm.kt

@@ -1,3 +1,3 @@
-impl class Foo {
-    impl val foo get() = 2
+actual class Foo {
+    actual val foo get() = 2
 }