Minor, improve test on unexported package in Java module

Add Kotlin class/function/property.

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA.txt

@@ -0,0 +1 @@
+OK

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA/a/K.kt

@@ -0,0 +1,9 @@
+package a
+
+import a.impl.KImpl
+
+open class K {
+    companion object {
+        fun getInstance(): KImpl = KImpl()
+    }
+}

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA/a/impl/AImpl.java

@@ -2,4 +2,7 @@ package a.impl;
 
 import a.A;
 
-public class AImpl extends A {}
+public class AImpl extends A {
+    public static String field = "";
+    public static String method() { return ""; }
+}

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA/a/impl/KImpl.kt

@@ -0,0 +1,10 @@
+package a.impl
+
+import a.K
+
+class KImpl : K() {
+    companion object {
+        val field: String = ""
+        fun method(): String = ""
+    }
+}

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA/a/impl/KotlinFile.kt

@@ -0,0 +1,4 @@
+package a.impl
+
+val fileField: String = ""
+fun fileMethod(): String = ""

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleA/module-info.java

@@ -1,3 +1,5 @@
 module moduleA {
     exports a;
+
+    requires kotlin.stdlib;
 }

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB.txt

@@ -1,4 +1,37 @@
 compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:8:9: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
 val a3: AImpl = A.getInstance()
         ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:9:18: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val a4: String = AImpl.method()
+                 ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:9:24: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val a4: String = AImpl.method()
+                       ^^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:10:18: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val a5: String = AImpl.field
+                 ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:10:24: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val a5: String = AImpl.field
+                       ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:14:9: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val k3: KImpl = K.getInstance()
+        ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:15:18: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val k4: String = KImpl.method()
+                 ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:15:24: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val k4: String = KImpl.method()
+                       ^^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:16:18: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val k5: String = KImpl.field
+                 ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:16:24: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val k5: String = KImpl.field
+                       ^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:18:19: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val kf1: String = fileField
+                  ^^^^^^^^^
+compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt:19:19: error: symbol is declared in module 'moduleA' which does not export package 'a.impl'
+val kf2: String = fileMethod()
+                  ^^^^^^^^^^
 COMPILATION_ERROR

compiler/testData/javaModules/simpleUseNonExportedPackage/moduleB/usage.kt

@@ -6,3 +6,14 @@ import a.impl.*
 val a1: A = A()
 val a2: A = A.getInstance()
 val a3: AImpl = A.getInstance()
+val a4: String = AImpl.method()
+val a5: String = AImpl.field
+
+val k1: K = K()
+val k2: K = K.getInstance()
+val k3: KImpl = K.getInstance()
+val k4: String = KImpl.method()
+val k5: String = KImpl.field
+
+val kf1: String = fileField
+val kf2: String = fileMethod()