Recognize gccgo error messages.

bug039.go:6:7: error: redefinition of 'x'
bug039.go:5:1: note: previous definition of 'x' was here

bug049.go:6:9: error: incompatible types in binary expression

bug062.go:6:7: error: incompatible type in initialization

bug086.go:5:1: error: control reaches end of non-void function

bug103.go:8:2: error: variable has no type

bug121.go:9:2: error: expected signature or type name

bug131.go:7:7: error: incompatible type in initialization

bug165.go:10:8: error: expected complete type

bug171.go:5:1: error: control reaches end of non-void function
bug171.go:6:1: error: control reaches end of non-void function

bug172.go:7:6: error: expected integer type

bug182.go:7:2: error: if statement expects boolean expression

bug183.go:10:5: error: incompatible types in assignment
bug183.go:19:5: error: incompatible types in assignment

R=rsc
DELTA=15  (0 added, 0 deleted, 15 changed)
OCL=33168
CL=33175

test/fixedbugs/bug039.go

@@ -6,6 +6,6 @@
 
 package main
 
-func main (x int) {
-  var x int;  // ERROR "redecl"
+func main (x int) {	// GCCGO_ERROR "previous"
+  var x int;  // ERROR "redecl|redefinition"
 }

test/fixedbugs/bug049.go

@@ -7,7 +7,7 @@
 package main
 
 func atom(s string) {
-	if s == nil {	// ERROR "nil"
+	if s == nil {	// ERROR "nil|incompatible"
 		return;
 	}
 }

test/fixedbugs/bug062.go

@@ -7,5 +7,5 @@
 package main
 
 func main() {
-  var s string = nil;  // ERROR "illegal|invalid|cannot"
+  var s string = nil;  // ERROR "illegal|invalid|incompatible|cannot"
 }

test/fixedbugs/bug086.go

@@ -6,7 +6,7 @@
 
 package main
 
-func f() int {	// ERROR "return"
+func f() int {	// ERROR "return|control"
 	if false {
 		return 0;
 	}

test/fixedbugs/bug103.go

@@ -9,6 +9,6 @@ package main
 func f() /* no return type */ {}
 
 func main() {
-	x := f();  // ERROR "mismatch|as value"
+	x := f();  // ERROR "mismatch|as value|no type"
 }
 

test/fixedbugs/bug121.go

@@ -10,6 +10,6 @@ type T func()
 
 type I interface {
 	f, g ();
-	h T;  // ERROR "syntax"
+	h T;  // ERROR "syntax|signature"
 }
 

test/fixedbugs/bug131.go

@@ -8,5 +8,5 @@ package main
 
 func main() {
   const a uint64 = 10;
-  var b int64 = a;	// ERROR "convert|cannot"
+  var b int64 = a;	// ERROR "convert|cannot|incompatible"
 }

test/fixedbugs/bug165.go

@@ -11,5 +11,5 @@ type I interface {
 }
 
 type S struct {
-	m map[S] bool;	// ERROR "map key type"
+	m map[S] bool;	// ERROR "map key type|complete"
 }

test/fixedbugs/bug171.go

@@ -6,5 +6,5 @@
 
 package main
 
-func f() int { }	// ERROR "return"
-func g() (foo int) { }	// ERROR "return"
+func f() int { }	// ERROR "return|control"
+func g() (foo int) { }	// ERROR "return|control"

test/fixedbugs/bug172.go

@@ -8,5 +8,5 @@ package main
 
 func f() {
 	a := true;
-	a |= a;	// ERROR "illegal.*OR|bool"
+	a |= a;	// ERROR "illegal.*OR|bool|expected"
 }

test/fixedbugs/bug182.go

@@ -8,6 +8,6 @@ package main
 
 func main() {
 	x := 0;
-	if x {	// ERROR "x.*int"
+	if x {	// ERROR "x.*int|bool"
 	}
 }

test/fixedbugs/bug183.go

@@ -11,7 +11,7 @@ type T int
 func f() {
 	var x struct { T };
 	var y struct { T T };
-	x = y	// ERROR "cannot"
+	x = y	// ERROR "cannot|incompatible"
 }
 
 type T1 struct { T }
@@ -20,6 +20,6 @@ type T2 struct { T T }
 func g() {
 	var x T1;
 	var y T2;
-	x = y	// ERROR "cannot"
+	x = y	// ERROR "cannot|incompatible"
 }