[C++] PR 56725

Index: cp/call.c
===================================================================
--- cp/call.c	(revision 197198)
+++ cp/call.c	(working copy)
@@ -5836,11 +5836,11 @@  convert_like_real (conversion *convs, tree expr, t
 	    break;
 	}
 
-      permerror (loc, "invalid conversion from %qT to %qT",
-		 TREE_TYPE (expr), totype);
-      if (fn)
-	permerror (DECL_SOURCE_LOCATION (fn),
-		   "  initializing argument %P of %qD", argnum, fn);
+      if (permerror (loc, "invalid conversion from %qT to %qT",
+		     TREE_TYPE (expr), totype)
+	  && fn)
+	inform (DECL_SOURCE_LOCATION (fn),
+		"initializing argument %P of %qD", argnum, fn);
 
       return cp_convert (totype, expr, complain);
     }
@@ -5943,7 +5943,8 @@  convert_like_real (conversion *convs, tree expr, t
 	  build_user_type_conversion (totype, convs->u.expr, LOOKUP_NORMAL,
 				      complain);
 	  if (fn)
-	    error ("  initializing argument %P of %q+D", argnum, fn);
+	    inform (input_location, "initializing argument %P of %q+D",
+		    argnum, fn);
 	}
       return error_mark_node;
 
@@ -6074,7 +6075,8 @@  convert_like_real (conversion *convs, tree expr, t
 	    error_at (loc, "cannot bind %qT lvalue to %qT",
 		      TREE_TYPE (expr), totype);
 	    if (fn)
-	      error ("  initializing argument %P of %q+D", argnum, fn);
+	      inform (input_location,
+		      "initializing argument %P of %q+D", argnum, fn);
 	    return error_mark_node;
 	  }
 
@@ -7467,11 +7469,11 @@  build_new_method_call_1 (tree instance, tree fns,
       if (! (complain & tf_error))
 	return error_mark_node;
 
-      permerror (input_location,
-		 "cannot call constructor %<%T::%D%> directly",
-		 basetype, name);
-      permerror (input_location, "  for a function-style cast, remove the "
-		 "redundant %<::%D%>", name);
+      if (permerror (input_location,
+		     "cannot call constructor %<%T::%D%> directly",
+		     basetype, name))
+	inform (input_location, "for a function-style cast, remove the "
+		"redundant %<::%D%>", name);
       call = build_functional_cast (basetype, build_tree_list_vec (user_args),
 				    complain);
       return call;
Index: cp/typeck.c
===================================================================
--- cp/typeck.c	(revision 197198)
+++ cp/typeck.c	(working copy)
@@ -7984,13 +7984,12 @@  convert_for_initialization (tree exp, tree type, t
       if (fndecl)
 	savew = warningcount + werrorcount, savee = errorcount;
       rhs = initialize_reference (type, rhs, flags, complain);
-      if (fndecl)
-	{
-	  if (warningcount + werrorcount > savew)
-	    warning (0, "in passing argument %P of %q+D", parmnum, fndecl);
-	  else if (errorcount > savee)
-	    error ("in passing argument %P of %q+D", parmnum, fndecl);
-	}
+
+      if (fndecl
+	  && (warningcount + werrorcount > savew || errorcount > savee))
+	inform (input_location,
+		"in passing argument %P of %q+D", parmnum, fndecl);
+
       return rhs;
     }
 
Index: testsuite/g++.dg/conversion/op4.C
===================================================================
--- testsuite/g++.dg/conversion/op4.C	(revision 197198)
+++ testsuite/g++.dg/conversion/op4.C	(working copy)
@@ -9,7 +9,7 @@  struct X {
   }
 };
 
-void add_one (X & ref) { /* { dg-error "in passing argument" } */
+void add_one (X & ref) { /* { dg-message "in passing argument" } */
   ++ ref.x;
 }
 
Index: testsuite/g++.dg/cpp0x/rv1n.C
===================================================================
--- testsuite/g++.dg/cpp0x/rv1n.C	(revision 197198)
+++ testsuite/g++.dg/cpp0x/rv1n.C	(working copy)
@@ -30,7 +30,7 @@  const volatile A cv_source();
 
 // 1 at a time
 
-one   sink_1_1(               A&);  // { dg-error "" }
+one   sink_1_1(               A&);  // { dg-message "" }
 
 int test1_1()
 {
@@ -48,7 +48,7 @@  int test1_1()
     return 0;
 }
 
-two   sink_1_2(const          A&);  // { dg-error "" }
+two   sink_1_2(const          A&);  // { dg-message "" }
 
 int test1_2()
 {
@@ -63,7 +63,7 @@  int test1_2()
     return 0;
 }
 
-three sink_1_3(volatile       A&);  // { dg-error "" }
+three sink_1_3(volatile       A&);  // { dg-message "" }
 
 int test1_3()
 {
@@ -80,7 +80,7 @@  int test1_3()
     return 0;
 }
 
-four  sink_1_4(const volatile A&);  // { dg-error "" }
+four  sink_1_4(const volatile A&);  // { dg-message "" }
 
 int test1_4()
 {
@@ -95,7 +95,7 @@  int test1_4()
     return 0;
 }
 
-five  sink_1_5(               A&&);  // { dg-error "" }
+five  sink_1_5(               A&&);  // { dg-message "" }
 
 int test1_5()
 {
@@ -113,7 +113,7 @@  int test1_5()
     return 0;
 }
 
-six   sink_1_6(const          A&&);  // { dg-error "" }
+six   sink_1_6(const          A&&);  // { dg-message "" }
 
 int test1_6()
 {
@@ -130,7 +130,7 @@  int test1_6()
     return 0;
 }
 
-seven sink_1_7(volatile       A&&);  // { dg-error "" }
+seven sink_1_7(volatile       A&&);  // { dg-message "" }
 
 int test1_7()
 {
@@ -147,7 +147,7 @@  int test1_7()
     return 0;
 }
 
-eight sink_1_8(const volatile A&&); // { dg-error "" }
+eight sink_1_8(const volatile A&&); // { dg-message "" }
 
 int test1_8()
 {
Index: testsuite/g++.dg/cpp0x/rv2n.C
===================================================================
--- testsuite/g++.dg/cpp0x/rv2n.C	(revision 197198)
+++ testsuite/g++.dg/cpp0x/rv2n.C	(working copy)
@@ -161,7 +161,7 @@  int test2_17()
 }
 
 one   sink_2_18(               A&);
-eight sink_2_18(const volatile A&&); // { dg-error "argument" }
+eight sink_2_18(const volatile A&&); // { dg-message "argument" }
 
 int test2_18()
 {
@@ -288,7 +288,7 @@  int test2_27()
 }
 
 two   sink_2_28(const          A&);
-eight sink_2_28(const volatile A&&); // { dg-error "argument" }
+eight sink_2_28(const volatile A&&); // { dg-message "argument" }
 
 int test2_28()
 {
@@ -362,7 +362,7 @@  int test2_37()
 }
 
 three sink_2_38(volatile       A&);
-eight sink_2_38(const volatile A&&); // { dg-error "argument" }
+eight sink_2_38(const volatile A&&); // { dg-message "argument" }
 
 int test2_38()
 {
@@ -468,8 +468,8 @@  int test2_57()
     return 0;
 }
 
-five  sink_2_58(               A&&); // { dg-error "argument" }
-eight sink_2_58(const volatile A&&); // { dg-error "argument" }
+five  sink_2_58(               A&&); // { dg-message "argument" }
+eight sink_2_58(const volatile A&&); // { dg-message "argument" }
 
 int test2_58()
 {
@@ -505,8 +505,8 @@  int test2_67()
     return 0;
 }
 
-six   sink_2_68(const          A&&); // { dg-error "argument" }
-eight sink_2_68(const volatile A&&); // { dg-error "argument" }
+six   sink_2_68(const          A&&); // { dg-message "argument" }
+eight sink_2_68(const volatile A&&); // { dg-message "argument" }
 
 int test2_68()
 {
@@ -520,8 +520,8 @@  int test2_68()
     sink_2_68(cva);		// { dg-error "lvalue" }
 }
 
-seven sink_2_78(volatile       A&&); // { dg-error "argument" }
-eight sink_2_78(const volatile A&&); // { dg-error "argument" }
+seven sink_2_78(volatile       A&&); // { dg-message "argument" }
+eight sink_2_78(const volatile A&&); // { dg-message "argument" }
 
 int test2_78()
 {
Index: testsuite/g++.dg/cpp0x/template_deduction.C
===================================================================
--- testsuite/g++.dg/cpp0x/template_deduction.C	(revision 197198)
+++ testsuite/g++.dg/cpp0x/template_deduction.C	(working copy)
@@ -35,7 +35,7 @@  test1(T&&)
 
 template <bool is_lvalue_ref, bool is_rvalue_ref, class T>
 void
-test2(const T&&)		// { dg-error "argument" }
+test2(const T&&)		// { dg-message "argument" }
 {
     sa<is_lvalue_reference<const T&&>::value == is_lvalue_ref> t1;
     sa<is_rvalue_reference<const T&&>::value == is_rvalue_ref> t2;
Index: testsuite/g++.dg/expr/cond8.C
===================================================================
--- testsuite/g++.dg/expr/cond8.C	(revision 197198)
+++ testsuite/g++.dg/expr/cond8.C	(working copy)
@@ -3,7 +3,7 @@ 
 
 struct A
 {
-  A(void*);			// { dg-error "initializing" }
+  A(void*);			// { dg-message "initializing" }
   ~A();
 };
 
Index: testsuite/g++.dg/other/error4.C
===================================================================
--- testsuite/g++.dg/other/error4.C	(revision 197198)
+++ testsuite/g++.dg/other/error4.C	(working copy)
@@ -7,7 +7,7 @@ 
 
 struct Wrapper {};
 
-void Foo(int const &); // { dg-error "in passing" "" }
+void Foo(int const &); // { dg-message "in passing" "" }
 
 void Baz ()
 {
Index: testsuite/g++.old-deja/g++.bugs/900514_03.C
===================================================================
--- testsuite/g++.old-deja/g++.bugs/900514_03.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.bugs/900514_03.C	(working copy)
@@ -16,7 +16,7 @@ 
 
 struct t_0_st_0;
 
-struct t_0_st_1 {		// { dg-error "initializing" }
+struct t_0_st_1 {		// { dg-message "initializing" }
   int member;
 
   t_0_st_1 (t_0_st_0&);// { dg-message "note" } 
@@ -85,7 +85,7 @@  void t_1_local_init ()
 
 struct t_2_st_0;
 
-struct t_2_st_1 {		// { dg-error "initializing" }
+struct t_2_st_1 {		// { dg-message "initializing" }
   int member;
 
   t_2_st_1 (t_2_st_0);		// { dg-message "note" }
Index: testsuite/g++.old-deja/g++.bugs/900519_02.C
===================================================================
--- testsuite/g++.old-deja/g++.bugs/900519_02.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.bugs/900519_02.C	(working copy)
@@ -10,7 +10,7 @@ 
 extern const int cint_obj = 9;
 volatile int vint_obj = 9;
 
-void take_int_ref (int& arg) { } // { dg-error "" } referenced by errors below
+void take_int_ref (int& arg) { } // { dg-message "" } referenced by errors below
 
 int& global_int_ref0 = cint_obj;		// { dg-error "" } 
 int& global_int_ref1 = vint_obj;		// { dg-error "" } 
Index: testsuite/g++.old-deja/g++.bugs/900519_03.C
===================================================================
--- testsuite/g++.old-deja/g++.bugs/900519_03.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.bugs/900519_03.C	(working copy)
@@ -14,8 +14,8 @@ 
 extern const int cint_obj;
 extern volatile int vint_obj;
 
-void take_cint_ref (const int& arg) { }	// { dg-error "" } 
-void take_vint_ref (volatile int& arg) { } // { dg-error "" } 
+void take_cint_ref (const int& arg) { }	// { dg-message "" } 
+void take_vint_ref (volatile int& arg) { } // { dg-message "" } 
 
 const int& global_cint_ref2 = vint_obj;		// { dg-error "" } 
 
Index: testsuite/g++.old-deja/g++.bugs/900520_02.C
===================================================================
--- testsuite/g++.old-deja/g++.bugs/900520_02.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.bugs/900520_02.C	(working copy)
@@ -9,7 +9,7 @@  typedef int u_array[];
 typedef b_array &b_array_ref;
 typedef u_array &u_array_ref;
 
-void take_b_array_ref (b_array_ref arg) { } // { dg-error "" } passed to here
+void take_b_array_ref (b_array_ref arg) { } // { dg-message "" } passed to here
 
 extern u_array u_array_gbl_obj;
 
Index: testsuite/g++.old-deja/g++.jason/conversion2.C
===================================================================
--- testsuite/g++.old-deja/g++.jason/conversion2.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.jason/conversion2.C	(working copy)
@@ -1,7 +1,7 @@ 
 // { dg-do assemble  }
 // PRMS Id: 3069
 
-void f(int&);			// { dg-error "" } referenced by error below
+void f(int&);			// { dg-message "" } referenced by error below
 void g(const int& i) {
   f(i);				// { dg-error "" } discarding const
 }
Index: testsuite/g++.old-deja/g++.law/cvt20.C
===================================================================
--- testsuite/g++.old-deja/g++.law/cvt20.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.law/cvt20.C	(working copy)
@@ -9,7 +9,7 @@ 
 
 // Compiles fine with Sun CC 2.1
 
-void f(char *& x) // { dg-error "passing argument" }
+void f(char *& x) // { dg-message "passing argument" }
 {
   x++;
 }
Index: testsuite/g++.old-deja/g++.law/cvt8.C
===================================================================
--- testsuite/g++.old-deja/g++.law/cvt8.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.law/cvt8.C	(working copy)
@@ -24,7 +24,7 @@  B::operator const A&() const {
         return a;
 }
 
-void f(A &a) { // { dg-error "" } in passing argument
+void f(A &a) { // { dg-message "" } in passing argument
         printf("A at %x is %d\n", &a, a.i);
 }
 
Index: testsuite/g++.old-deja/g++.law/init8.C
===================================================================
--- testsuite/g++.old-deja/g++.law/init8.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.law/init8.C	(working copy)
@@ -8,7 +8,7 @@ 
 
 
 const int ic = 1;
-void f(int& arg)  // { dg-error "passing argument 1" }
+void f(int& arg)  // { dg-message "passing argument 1" }
 {
         if (arg) ;
 }
Index: testsuite/g++.old-deja/g++.mike/net12.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/net12.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/net12.C	(working copy)
@@ -7,7 +7,7 @@  struct Foo {
   void m() const;
 };
 
-void other(char &x);	// { dg-error "" } reference below
+void other(char &x);	// { dg-message "" } reference below
 
 void
 Foo::m() const
Index: testsuite/g++.old-deja/g++.mike/net8.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/net8.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/net8.C	(working copy)
@@ -11,14 +11,14 @@  class Derived : public Base {
   int bar;
 };
 
-void func(Base&);			// { dg-error "passing argument 1" } 
+void func(Base&);			// { dg-message "passing argument 1" } 
 
 void func2(const Derived& d) {
   func(d);				// { dg-error "invalid initialization" }
 }
 
 void
-foo (int& a)				// { dg-error "in passing argument 1" } 
+foo (int& a)				// { dg-message "in passing argument 1" } 
 {
 }
 
Index: testsuite/g++.old-deja/g++.mike/p2793.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/p2793.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/p2793.C	(working copy)
@@ -1,6 +1,6 @@ 
 // { dg-do assemble  }
 // prms-id: 2793
 
-void f(char&) {			// { dg-error "" } referenced by error below
+void f(char&) {			// { dg-message "" } referenced by error below
   f('c');			// { dg-error "" } 
 }
Index: testsuite/g++.old-deja/g++.mike/p3836.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/p3836.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/p3836.C	(working copy)
@@ -1,7 +1,7 @@ 
 // { dg-do assemble  }
 // prms-id: 3836
 
-void f(int &i) {	// { dg-error "" } ref line
+void f(int &i) {	// { dg-message "" } ref line
   i = 10;
 }
 
Index: testsuite/g++.old-deja/g++.mike/p418.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/p418.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/p418.C	(working copy)
@@ -11,7 +11,7 @@  class Derived : public Base {
 	int bar;
 };
 
-void func(Base&);		// { dg-error "" } referenced by error below
+void func(Base&);		// { dg-message "" } referenced by error below
 
 void func2(const Derived& d) {
 	func(d);		// { dg-error "" } should be error because of const
Index: testsuite/g++.old-deja/g++.mike/p701.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/p701.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/p701.C	(working copy)
@@ -7,7 +7,7 @@  extern "C"
 }
 
 
-void Munge(int& x) 	// { dg-error "passing argument 1" }
+void Munge(int& x) 	// { dg-message "passing argument 1" }
 {
    x = 2;
 }
Index: testsuite/g++.old-deja/g++.mike/p807.C
===================================================================
--- testsuite/g++.old-deja/g++.mike/p807.C	(revision 197198)
+++ testsuite/g++.old-deja/g++.mike/p807.C	(working copy)
@@ -24,7 +24,7 @@  class B
 };
 
 
-int foo(B& b);			// { dg-error "" } referenced below
+int foo(B& b);			// { dg-message "" } referenced below
 
 
 int main()