LightClassTest: test corner cases related to inherited visiblity

EA-99155
 #KT-16899 Fixed

compiler/testData/asJava/lightClasses/compilationErrors/PrivateInTrait.java

@@ -0,0 +1,9 @@
+public interface PrivateInTrait {
+    final class DefaultImpls {
+        private static java.lang.String getNn(PrivateInTrait $this) { /* compiled code */ }
+
+        private static void setNn(PrivateInTrait $this, java.lang.String value) { /* compiled code */ }
+
+        private static java.lang.String getN(PrivateInTrait $this) { /* compiled code */ }
+    }
+}

compiler/testData/asJava/lightClasses/compilationErrors/PrivateInTrait.kt

@@ -0,0 +1,10 @@
+// PrivateInTrait
+
+interface PrivateInTrait {
+    private var nn: String
+        get() = ""
+        set(value) {}
+    private val n: String?
+        get() = ""
+    private fun bar(a: String, b: String?): String?
+}

compiler/testData/asJava/lightClasses/compilationErrors/TraitClassObjectField.java

@@ -0,0 +1,15 @@
+public interface TraitClassObjectField {
+    TraitClassObjectField.Companion Companion;
+    @org.jetbrains.annotations.Nullable
+    java.lang.String x = "";
+
+    static final class Companion {
+        @org.jetbrains.annotations.Nullable
+        public static final java.lang.String x = "";
+        private static final java.lang.String y = "";
+
+        private final java.lang.String getY() { /* compiled code */ }
+
+        private Companion() { /* compiled code */ }
+    }
+}

compiler/testData/asJava/lightClasses/compilationErrors/TraitClassObjectField.kt

@@ -0,0 +1,8 @@
+// TraitClassObjectField
+
+interface TraitClassObjectField {
+    companion object {
+        const val x: String? = ""
+        private val y: String? = ""
+    }
+}