Moved VG_(strdup)() and VG_(arena_strdup)() into m_mallocfree.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3878 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/pub_core_mallocfree.h b/coregrind/pub_core_mallocfree.h
index f6d0ea1..b5b7ec2 100644
--- a/coregrind/pub_core_mallocfree.h
+++ b/coregrind/pub_core_mallocfree.h
@@ -75,6 +75,7 @@
 extern void* VG_(arena_realloc) ( ArenaId arena, void* ptr, SizeT size );
 extern void* VG_(arena_memalign)( ArenaId aid, SizeT req_alignB, 
                                                SizeT req_pszB );
+extern Char* VG_(arena_strdup)  ( ArenaId aid, const Char* s);
 
 /* Sets the size of the redzones at the start and end of heap blocks.  This
    must be called before any of VG_(malloc) and friends are called. */