Move the last remaining tests out of corecheck.

Also introduced VG_(showing_core_errors)() to make core error display
more consistent.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4073 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/pub_core_errormgr.h b/coregrind/pub_core_errormgr.h
index 4483555..bcd1f3b 100644
--- a/coregrind/pub_core_errormgr.h
+++ b/coregrind/pub_core_errormgr.h
@@ -1,3 +1,4 @@
+
 /*--------------------------------------------------------------------*/
 /*--- ErrorMgr: management of errors and suppressions.             ---*/
 /*---                                          pub_core_errormgr.h ---*/
@@ -55,6 +56,8 @@
 
 extern Bool VG_(is_action_requested)      ( Char* action, Bool* clo );
 
+extern Bool VG_(showing_core_errors)      ( void );
+
 extern UInt VG_(get_n_errs_found)         ( void );
 
 #endif   // __PUB_CORE_ERRORMGR_H