re PR c++/20552 (ICE in write_type, at cp/mangle.c:1579)

	PR c++/20552
	* g++.dg/ext/typeof10.C: New test.

From-SVN: r108796

gcc/testsuite/ChangeLog

+2005-12-19  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
+
+	PR c++/20552
+	* g++.dg/ext/typeof10.C: New test.
+
 2005-12-19  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* gcc.dg/mt-loopi1.c: New.

gcc/testsuite/g++.dg/ext/typeof10.C

+// PR c++/20552
+// Origin: Ivan Godard <igodard@pacbell.net>
+
+template<int> struct A
+{
+  void foo()
+  {
+    typedef int T;                // { dg-error "previous" }
+    typedef __typeof__(*this) T;  // { dg-error "conflicting" }
+  }
+};