* checks.adb (Determine_Range): Increase cache size for checks.
Minor reformatting
* exp_ch6.adb: Minor reformatting
(Expand_N_Subprogram_Body): Reset Is_Pure for any subprogram that has
a parameter whose root type is System.Address, since treating such
subprograms as pure in the code generator is almost surely a mistake
that will lead to unexpected results.
* exp_util.adb (Remove_Side_Effects): Clean up old ??? comment and
change handling of conversions.
* g-regexp.adb: Use System.IO instead of Ada.Text_IO.
From-SVN: r47686
