ada: Small cleanup in Expand_N_Object_Declaration
This reuses a local constant more consistently, removes a duplicate of this
local constant, renames local variables, alphabetizes declarations, makes a
few consistency tweaks and adjusts a couple of comments.
No functional changes.
gcc/ada/
* exp_ch3.adb (Expand_N_Object_Declaration): Use Typ local
constant throughout, remove Ret_Obj_Typ local constant, rename
Ref_Type into Acc_Typ in a couple of places, remove a useless call
to Set_Etype, use a consistent checks suppression scheme, adjust
comments for the sake of consistencty and alphabetize some local
declarations.
* exp_ch6.adb (Expand_Simple_Function_Return): Remove a couple of
redundant local constants.