Changes on code review

core/descriptors/src/org/jetbrains/kotlin/renderer/DescriptorRendererImpl.kt

@@ -311,7 +311,7 @@ internal class DescriptorRendererImpl(
         append("(")
         val parameterTypes = getValueParameterTypesFromFunctionType(type)
         val parameterNames = type.getParameterNamesFromFunctionType() ?: parameterTypes.map { SpecialNames.NO_NAME_PROVIDED }
-        assert(parameterNames.size == parameterTypes.size)
+        assert(parameterNames.size == parameterTypes.size) { "Number of names does not match number of types for $type"}
 
         for (index in parameterTypes.indices) {
             val typeProjection = parameterTypes[index]

core/descriptors/src/org/jetbrains/kotlin/types/KotlinTypeFactory.kt

@@ -51,22 +51,6 @@ object KotlinTypeFactory {
             arguments: List<TypeProjection>
     ): SimpleType = SimpleTypeImpl(annotations, descriptor.typeConstructor, arguments, false, descriptor.getMemberScope(arguments))
 
-    @JvmStatic
-    fun functionType(
-            annotations: Annotations,
-            descriptor: ClassDescriptor,
-            arguments: List<TypeProjection>,
-            parameterNames: List<Name>?
-    ): SimpleType {
-        val simpleType = simpleNotNullType(annotations, descriptor, arguments)
-        if (parameterNames == null || parameterNames.all { it.isSpecial }) {
-            return simpleType
-        }
-        else {
-            return FunctionType(simpleType, parameterNames)
-        }
-    }
-
     @JvmStatic
     fun simpleType(
             baseType: SimpleType,