ada: Introduce RTEMS.Size type

Some time ago the Classic API object size related parameters were
changed to use size_t.  Reflect this in the Ada bindings.

Update #3082.

testsuites/ada/support/init.c

@@ -35,7 +35,7 @@ void ada_test_begin(void);
 void ada_test_end(void);
 uint32_t milliseconds_per_tick(void);
 uint32_t ticks_per_second(void);
-uint32_t work_space_size(void);
+size_t work_space_size(void);
 uint32_t is_configured_multiprocessing(void);
 uint32_t get_node(void);
 rtems_id tcb_to_id(Thread_Control *tcb);
@@ -84,7 +84,7 @@ uint32_t ticks_per_second(void)
   return rtems_clock_get_ticks_per_second();
 }
 
-uint32_t work_space_size(void)
+size_t work_space_size(void)
 {
   return rtems_configuration_get_work_space_size()
     + rtems_configuration_get_stack_space_size();

testsuites/ada/support/test_support.adb

@@ -227,8 +227,8 @@ package body Test_Support is
 --
 
    function Work_Space_Size
-   return RTEMS.Unsigned32 is 
-      function Work_Space_Size_Base return RTEMS.Unsigned32;
+   return RTEMS.Size is
+      function Work_Space_Size_Base return RTEMS.Size;
       pragma Import (C, Work_Space_Size_Base, "work_space_size");
    begin
       return Work_Space_Size_Base;

testsuites/ada/support/test_support.ads

@@ -181,7 +181,7 @@ package Test_Support is
 --
 
    function Work_Space_Size
-   return RTEMS.Unsigned32;
+   return RTEMS.Size;
 
 --
 --  Return an indication of whether multiprocessing is configured