tests/check_new_syntax.py: check order of if statements (#6423)

stdlib/inspect.pyi

@@ -93,14 +93,7 @@ def isframe(object: object) -> TypeGuard[FrameType]: ...
 def iscode(object: object) -> TypeGuard[CodeType]: ...
 def isbuiltin(object: object) -> TypeGuard[BuiltinFunctionType]: ...
 
-if sys.version_info < (3, 7):
-    def isroutine(
-        object: object,
-    ) -> TypeGuard[FunctionType | LambdaType | MethodType | BuiltinFunctionType | BuiltinMethodType]: ...
-    def ismethoddescriptor(object: object) -> bool: ...
-    def ismemberdescriptor(object: object) -> bool: ...
-
-else:
+if sys.version_info >= (3, 7):
     def isroutine(
         object: object,
     ) -> TypeGuard[
@@ -116,6 +109,13 @@ else:
     def ismethoddescriptor(object: object) -> TypeGuard[MethodDescriptorType]: ...
     def ismemberdescriptor(object: object) -> TypeGuard[MemberDescriptorType]: ...
 
+else:
+    def isroutine(
+        object: object,
+    ) -> TypeGuard[FunctionType | LambdaType | MethodType | BuiltinFunctionType | BuiltinMethodType]: ...
+    def ismethoddescriptor(object: object) -> bool: ...
+    def ismemberdescriptor(object: object) -> bool: ...
+
 def isabstract(object: object) -> bool: ...
 def isgetsetdescriptor(object: object) -> TypeGuard[GetSetDescriptorType]: ...
 def isdatadescriptor(object: object) -> TypeGuard[_SupportsSet[Any, Any] | _SupportsDelete[Any]]: ...