re PR c++/33492 (Broken diagnostic: 'must_not_throw_expr' not supported by dump_expr)

/cp
2009-03-06  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/33492
	* error.c (dump_expr): Don't try to print THROW_EXPRs in full.

/testsuite
2009-03-06  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/33492
	* g++.dg/other/error32.C: New.

From-SVN: r144686

gcc/cp/ChangeLog

+2009-03-06  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/33492
+	* error.c (dump_expr): Don't try to print THROW_EXPRs in full.
+
 2009-03-06  Alexandre Oliva  <aoliva@redhat.com>
 
 	* decl.c (record_builtin_java_type): Use canonicalized integer

gcc/cp/error.c

@@ -1508,8 +1508,9 @@ dump_expr (tree t, int flags)
       break;
 
     case THROW_EXPR:
-      pp_cxx_identifier (cxx_pp, "throw");
-      dump_expr (TREE_OPERAND (t, 0), flags);
+      /* While waiting for caret diagnostics, avoid printing
+	 __cxa_allocate_exception, __cxa_throw, and the like.  */
+      pp_cxx_identifier (cxx_pp, "<throw-expression>");
       break;
 
     case PTRMEM_CST:

gcc/testsuite/ChangeLog

+2009-03-06  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/33492
+	* g++.dg/other/error32.C: New.
+
 2009-03-06  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/39360

gcc/testsuite/g++.dg/other/error32.C

+// PR c++/33492
+// { dg-options "" }
+
+void foo()
+{
+  if (throw 0) // { dg-error "could not convert .\\<throw-expression\\>. to .bool." }
+    ;
+}