c++/5857: C++ duplicate_decls shouldn't use common_type

[jakub@redhat.com]

>Number:         5857
>Category:       c++
>Synopsis:       C++ duplicate_decls shouldn't use common_type
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 06 13:56:18 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     jakub@redhat.com
>Release:        3.1 20020306 (prerelease)
>Organization:
>Environment:
i386-redhat-linux
>Description:
Details in http://gcc.gnu.org/ml/gcc-patches/2002-01/msg01805.html
--- gcc/testsuite/g++.dg/other/redecl1.C.jj     Fri Jan 25 00:19:22 2002
+++ gcc/testsuite/g++.dg/other/redecl1.C        Fri Jan 25 00:23:33 2002
@@ -0,0 +1,7 @@
+// This testcase failed because during duplicate_decls the type was promoted
+// to int.
+// { dg-do compile }
+typedef char baz;
+extern const char foo[];
+const baz foo[] = "xyz";
+const char bar[] = "abc";
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: