Respect explicit api mode state when generating actual declarations

#KT-44067 Fixed

idea/testData/multiModuleQuickFix/createActualExplicitApi/class/header/header.kt.after

@@ -0,0 +1,16 @@
+// "Create actual class for module testModule_JVM (JVM)" "true"
+// COMPILER_ARGUMENTS: -Xexplicit-api=strict
+
+public expect class My {
+    public fun foo(param: String): Int
+
+    public fun String.bar(y: Double): Boolean
+
+    public fun baz(): Unit
+
+    public constructor(flag: Boolean)
+
+    public val isGood: Boolean
+
+    public var status: Int
+}