test: match gccgo error messages

bug363.go:13:12: error: invalid context-determined non-integer type for shift operand
bug363.go:16:12: error: invalid context-determined non-integer type for shift operand

pointer.go:34:6: error: incompatible type in initialization (pointer to interface type has no methods)
pointer.go:36:6: error: incompatible type in initialization

method2.go:15:1: error: invalid pointer or interface receiver type
method2.go:16:1: error: invalid pointer or interface receiver type
method2.go:21:1: error: invalid pointer or interface receiver type
method2.go:22:1: error: invalid pointer or interface receiver type
method2.go:28:15: error: type ‘*Val’ has no method ‘val’
method2.go:33:11: error: reference to undefined field or method ‘val’

shift1.go:19:16: error: invalid context-determined non-integer type for shift operand
shift1.go:24:19: error: invalid context-determined non-integer type for shift operand
shift1.go:25:17: error: invalid context-determined non-integer type for shift operand
shift1.go:18:18: error: shift of non-integer operand
shift1.go:26:13: error: floating point constant truncated to integer
shift1.go:33:15: error: integer constant overflow
shift1.go:34:15: error: integer constant overflow
shift1.go:35:17: error: integer constant overflow

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5081051
diff --git a/test/method2.go b/test/method2.go
index 2fdc9fc..039779e 100644
--- a/test/method2.go
+++ b/test/method2.go
@@ -12,14 +12,14 @@
 type P *T
 type P1 *T
 
-func (p P) val() int   { return 1 } // ERROR "receiver.* pointer"
-func (p *P1) val() int { return 1 } // ERROR "receiver.* pointer"
+func (p P) val() int   { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver"
+func (p *P1) val() int { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver"
 
 type I interface{}
 type I1 interface{}
 
-func (p I) val() int { return 1 } // ERROR "receiver.*interface"
-func (p *I1) val() int { return 1 } // ERROR "receiver.*interface"
+func (p I) val() int { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
+func (p *I1) val() int { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
 
 type Val interface {
 	val() int