Skip additional visibility check for java classes in debug mode

compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JavaTypeAccessibilityChecker.kt

@@ -40,6 +40,8 @@ class JavaTypeAccessibilityChecker : AdditionalTypeChecker {
         // To avoid superfluous diagnostics in case of invisible member class and so on,
         // we consider only Java classes as possibly inaccessible.
 
+        if (c.isDebuggerContext) return
+
         val inaccessibleTypes = findInaccessibleJavaTypes(expressionType, c)
         if (inaccessibleTypes.isNotEmpty()) {
             c.trace.report(Errors.INACCESSIBLE_TYPE.on(expression, expressionType, inaccessibleTypes))

idea/testData/debugger/tinyApp/outs/privateClass.out

@@ -6,6 +6,8 @@ Compile bytecode for A.PrivateClass()
 Compile bytecode for A.PrivateClass().prop
 Compile bytecode for A().PrivateInnerClass()
 Compile bytecode for A().PrivateInnerClass().prop
+Compile bytecode for forTests.MyJavaClass.PrivateJavaClass()
+Compile bytecode for forTests.MyJavaClass.PrivateJavaClass().prop
 Disconnected from the target VM, address: '!HOST_NAME!:PORT_NAME!', transport: 'socket'
 
 Process finished with exit code 0

idea/testData/debugger/tinyApp/src/evaluate/singleBreakpoint/privateClass.kt

@@ -26,3 +26,9 @@ class A {
 
 // EXPRESSION: A().PrivateInnerClass().prop
 // RESULT: 1: I
+
+// EXPRESSION: forTests.MyJavaClass.PrivateJavaClass()
+// RESULT: instance of forTests.MyJavaClass$PrivateJavaClass(id=ID): LforTests/MyJavaClass$PrivateJavaClass;
+
+// EXPRESSION: forTests.MyJavaClass.PrivateJavaClass().prop
+// RESULT: 1: I

idea/testData/debugger/tinyApp/src/forTests/MyJavaClass.java

@@ -19,4 +19,8 @@ public class MyJavaClass {
     public static <T> T runReadAction(@NotNull Computable<T> computation) {
         return computation.compute();
     }
+
+    private static class PrivateJavaClass {
+        public final int prop = 1;
+    }
 }