JVM IR: Fix visibility for @InlineOnly functions

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/FunctionCodegen.kt

@@ -106,7 +106,7 @@ open class FunctionCodegen(
             }
         }
 
-        val visibility = AsmUtil.getVisibilityAccessFlag(irFunction.visibility) ?: error("Unmapped visibility ${irFunction.visibility}")
+        val visibility = irFunction.getVisibilityAccessFlag()
         val staticFlag = if (isStatic) Opcodes.ACC_STATIC else 0
         val varargFlag = if (irFunction.valueParameters.any { it.varargElementType != null }) Opcodes.ACC_VARARGS else 0
         val deprecation = irFunction.deprecationFlags

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/irCodegenUtils.kt

@@ -167,7 +167,7 @@ private fun IrClass.innerAccessFlagsForModalityAndKind(): Int {
     return 0
 }
 
-private fun IrDeclarationWithVisibility.getVisibilityAccessFlag(kind: OwnerKind? = null): Int =
+fun IrDeclarationWithVisibility.getVisibilityAccessFlag(kind: OwnerKind? = null): Int =
     specialCaseVisibility(kind)
         ?: visibilityToAccessFlag[visibility]
         ?: throw IllegalStateException("$visibility is not a valid visibility in backend for ${ir2string(this)}")
@@ -223,9 +223,9 @@ private fun IrDeclarationWithVisibility.specialCaseVisibility(kind: OwnerKind?):
 //    if (memberDescriptor is ConstructorDescriptor && isAnonymousObject(memberDescriptor.containingDeclaration)) {
 //        return getVisibilityAccessFlagForAnonymous(memberDescriptor.containingDeclaration as ClassDescriptor)
 //    }
-    if (this is IrConstructor && parentAsClass.isAnonymousObject) {
-        return parentAsClass.getVisibilityAccessFlagForAnonymous()
-    }
+//    if (this is IrConstructor && parentAsClass.isAnonymousObject) {
+//        return parentAsClass.getVisibilityAccessFlagForAnonymous()
+//    }
 
 //    TODO: when is this applicable?
 //    if (memberDescriptor is SyntheticJavaPropertyDescriptor) {

compiler/testData/writeFlags/inline/inlineOnly.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 class MyClass {
     @Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
     @kotlin.internal.InlineOnly