[JS IR BE] Use internal visibility for generated helper methods

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/BlockDecomposerLowering.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.ir.backend.js.lower
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
 import org.jetbrains.kotlin.backend.common.DeclarationContainerLoweringPass
 import org.jetbrains.kotlin.backend.common.ir.isElseBranch
+import org.jetbrains.kotlin.descriptors.Visibilities
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -69,7 +70,7 @@ abstract class AbstractBlockDecomposerLowering(context: CommonBackendContext) :
                 irField.name.asString() + "\$init\$",
                 expression.type,
                 container,
-                irField.visibility
+                Visibilities.PRIVATE
             )
 
             val newBody = toBlockBody(initFunction)

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/CallableReferenceLowering.kt

@@ -426,7 +426,7 @@ class CallableReferenceLowering(val context: JsIrBackendContext) : FileLoweringP
 
         val boundValueParameters = receivers + declaration.valueParameters.filter { it.origin == BOUND_VALUE_PARAMETER }
 
-        val factoryDeclaration = JsIrBuilder.buildFunction(getterName, reference.type, implicitDeclarationFile, declaration.visibility)
+        val factoryDeclaration = JsIrBuilder.buildFunction(getterName, reference.type, implicitDeclarationFile, Visibilities.INTERNAL)
 
         for ((i, p) in boundValueParameters.withIndex()) {
             val descriptor = WrappedValueParameterDescriptor()

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/SecondaryCtorLowering.kt

@@ -10,6 +10,7 @@ import org.jetbrains.kotlin.backend.common.FileLoweringPass
 import org.jetbrains.kotlin.backend.common.ir.copyTo
 import org.jetbrains.kotlin.backend.common.ir.copyTypeParametersFrom
 import org.jetbrains.kotlin.descriptors.Modality
+import org.jetbrains.kotlin.descriptors.Visibilities
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.backend.js.JsIrBackendContext
@@ -147,7 +148,7 @@ private fun buildInitDeclaration(constructor: IrConstructor, irClass: IrClass):
         functionName,
         type,
         constructor.parent,
-        constructor.visibility,
+        Visibilities.INTERNAL,
         Modality.FINAL,
         constructor.isInline,
         constructor.isExternal