[Ada] Couple of minor tweaks to Eval_Fat.Succ

This saves a few cycles by using Ureal_Half instead of Ureal_1. Tested on x86_64-pc-linux-gnu, committed on trunk gcc/ada/ * eval_fat.adb (Succ): Use Ureal_Half in a couple of places.diff --git a/gcc/ada/eval_fat.adb b/gcc/ada/eval_fat.adb --- a/gcc/ada/eval_fat.adb +++ b/gcc/ada/eval_fa

[Ada] Couple of minor tweaks

This avoids applying the NRV optimization for small structures and creating useless elaboration variables for loops. Tested on x86_64-suse-linux, applied on the mainline and 4.7 branch. 2012-10-02 Eric Botcazou * gcc-interfaces/decl.c (elaborate_expression_1): Use the variable for