Do not sort named parameters on FunctionNode.

pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt

Index: pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt
diff --git a/pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt b/pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt
index 81775b5e308b682fb9f741ec880a337503a8d421..d005aa22b8371555694237d399def780e0689b3b 100644
--- a/pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt
+++ b/pkg/kernel/testcases/type-propagation/named_parameters.baseline.txt
@@ -7,7 +7,7 @@ class Superclass extends core::Object {
     : super core::Object::•()
     ;
   method foo({dynamic/Null alpha, dynamic/Null beta}) → dynamic/Null {}
-  method bar({dynamic/Null alpha, dynamic/Null beta}) → dynamic/Null {}
+  method bar({dynamic/Null beta, dynamic/Null alpha}) → dynamic/Null {}
   method namedCallback(({alpha: core::String, beta: core::int}) → dynamic/Nothing callback) → dynamic/Null {
     callback.call(alpha: "one", beta: 2);
     callback.call(beta: 1, alpha: "two");
@@ -17,11 +17,11 @@ class Subclass extends self::Superclass {
   constructor •() → void
     : super self::Superclass::•()
     ;
-  method foo({dynamic/core::int* {null,int} alpha, dynamic/core::int* {null,int} beta}) → dynamic/Null {}
+  method foo({dynamic/core::int* {null,int} beta, dynamic/core::int* {null,int} alpha}) → dynamic/Null {}
   method bar({dynamic/Null alpha, dynamic/Null beta}) → dynamic/Null {}
   method namedCallback(({alpha: core::String, beta: core::int}) → dynamic/Nothing callback) → dynamic/Null {}
 }
-static method topLevelNamed(dynamic/core::int* {int} beta, dynamic/core::int* {int} alpha, {dynamic/core::int* {null,int} delta, dynamic/core::int* {null,int} gamma}) → dynamic/Null {}
+static method topLevelNamed(dynamic/core::int* {int} beta, dynamic/core::int* {int} alpha, {dynamic/core::int* {null,int} gamma, dynamic/core::int* {null,int} delta}) → dynamic/Null {}
 static method topLevelOptional(dynamic/Nothing beta, dynamic/Nothing alpha, [dynamic/Null gamma, dynamic/Null delta]) → dynamic/Null {}
 static method main() → dynamic/Null {
   new self::Subclass::•().foo(beta: 1, alpha: 2);