Fix for KT-6552 IllegalAccessError in inline function with "when" over enum across modules

#KT-6552 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/when/MappingClassesForWhenByEnumCodegen.java

@@ -47,7 +47,7 @@ public class MappingClassesForWhenByEnumCodegen {
         cb.defineClass(
                 srcFile,
                 V1_6,
-                ACC_FINAL | ACC_SYNTHETIC,
+                ACC_FINAL | ACC_SYNTHETIC | ACC_PUBLIC,
                 mappingsClass.getInternalName(),
                 null,
                 OBJECT_TYPE.getInternalName(),

compiler/testData/codegen/boxInline/anonymousObject/kt6552.1.kt

@@ -0,0 +1,5 @@
+import test.*
+
+fun box(): String {
+    return switch(X.A) + switch(X.B)
+}

compiler/testData/codegen/boxInline/anonymousObject/kt6552.2.kt

@@ -0,0 +1,8 @@
+package test
+
+public enum class X { A, B }
+
+public inline fun switch(x: X): String = when (x) {
+    X.A -> "O"
+    X.B -> "K"
+}

compiler/tests/org/jetbrains/kotlin/codegen/generated/BlackBoxInlineCodegenTestGenerated.java

@@ -115,6 +115,12 @@ public class BlackBoxInlineCodegenTestGenerated extends AbstractBlackBoxInlineCo
             doTestMultiFileWithInlineCheck(fileName);
         }
 
+        @TestMetadata("kt6552.1.kt")
+        public void testKt6552() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt6552.1.kt");
+            doTestMultiFileWithInlineCheck(fileName);
+        }
+
         @TestMetadata("kt8133.1.kt")
         public void testKt8133() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt8133.1.kt");

compiler/tests/org/jetbrains/kotlin/jvm/compiler/CompileKotlinAgainstInlineKotlinTestGenerated.java

@@ -115,6 +115,12 @@ public class CompileKotlinAgainstInlineKotlinTestGenerated extends AbstractCompi
             doBoxTestWithInlineCheck(fileName);
         }
 
+        @TestMetadata("kt6552.1.kt")
+        public void testKt6552() throws Exception {
+            String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt6552.1.kt");
+            doBoxTestWithInlineCheck(fileName);
+        }
+
         @TestMetadata("kt8133.1.kt")
         public void testKt8133() throws Exception {
             String fileName = JetTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt8133.1.kt");