Skip explicit API inspection for data class properties and add inspection for public API in interfaces

Add tests for almost all the cases

compiler/frontend/src/org/jetbrains/kotlin/resolve/checkers/ExplicitApiDeclarationChecker.kt

@@ -76,17 +76,15 @@ class ExplicitApiDeclarationChecker : DeclarationChecker {
     /**
      * Exclusion list:
      * 1. Primary constructors of public API classes
-     * 2. Members of public API interfaces
-     * 3. do not report overrides of public API? effectively, this means 'no report on overrides at all'
+     * 2. Properties of data classes in public API
+     * 3. Overrides of public API. Effectively, this means 'no report on overrides at all'
      * 4. Getters and setters (because getters can't change visibility and setter-only explicit visibility looks ugly)
      *
      * Do we need something like @PublicApiFile to disable (or invert) this inspection per-file?
      */
     private fun excludeForDiagnostic(descriptor: DeclarationDescriptor): Boolean {
         /* 1. */ if ((descriptor as? ClassConstructorDescriptor)?.isPrimary == true) return true
-        val isMemberOfPublicInterface =
-            (descriptor.containingDeclaration as? ClassDescriptor)?.let { DescriptorUtils.isInterface(it) && it.effectiveVisibility().publicApi }
-        /* 2. */ if (descriptor is CallableDescriptor && isMemberOfPublicInterface == true) return true
+        /* 2. */ if (descriptor is PropertyDescriptor && (descriptor.containingDeclaration as? ClassDescriptor)?.isData == true) return true
         /* 3. */ if ((descriptor as? CallableDescriptor)?.overriddenDescriptors?.isNotEmpty() == true) return true
         /* 4. */ if (descriptor is PropertyAccessorDescriptor) return true
         return false