--print_locations: don't print null, please name instead.

(cherry picked from commit 55a96696179dc8854d25f9c4ab429abab604e200)

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/Context.kt

@@ -324,7 +324,8 @@ internal class Context(config: KonanConfig) : KonanBackendContext(config) {
 
                     override fun visitFunction(declaration: IrFunction) {
                         super.visitFunction(declaration)
-                        println("${declaration.descriptor.fqNameOrNull()}: ${fileEntry.range(declaration)}")
+                        val descriptor = declaration.descriptor
+                        println("${descriptor.fqNameOrNull()?: descriptor.name}: ${fileEntry.range(declaration)}")
                     }
                 })
             }