GNATcov_RTS: add missing pragma Pure/Ada 95 notices

Author: pmderodat

tools/gnatcov/rts/gcvrt.ads

@@ -17,6 +17,8 @@
 ------------------------------------------------------------------------------
 
 --  Namespace for units generated for instrumentation purposes
+--
+--  This unit needs to be compilable with Ada 95 compilers
 
 package GCVRT is
    pragma Pure;

tools/gnatcov/rts/gnatcov_rts-strings.ads

@@ -23,6 +23,8 @@
 ------------------------------------------------------------------------------
 
 --  Ada bindings for gnatcov_rts_c-strings.h
+--
+--  This unit needs to be compilable with Ada 95 compilers
 
 with Interfaces.C; use Interfaces.C;
 

tools/gnatcov/rts/gnatcov_rts-traces-output.ads

@@ -23,7 +23,11 @@
 ------------------------------------------------------------------------------
 
 --  Namespace for all support packages required to dump traces
+--
+--  This unit needs to be compilable with Ada 95 compilers
 
 package GNATcov_RTS.Traces.Output is
 
+   pragma Pure;
+
 end GNATcov_RTS.Traces.Output;

tools/gnatcov/rts/gnatcov_rts-traces.ads

@@ -22,6 +22,8 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
+--  This unit needs to be compilable with Ada 95 compilers
+
 package GNATcov_RTS.Traces is
 
    pragma Pure;