Test that a const with an explicit type is not treated as

having an abstract type.

R=gri
DELTA=11  (11 added, 0 deleted, 0 changed)
OCL=22829
CL=22832

test/bugs/bug131.go

+// errchk $G $D/$F.go
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+func main() {
+  const a uint64 = 10;
+  var b int64 = a;
+}

test/golden.out

@@ -143,6 +143,9 @@ BUG129
 bugs/bug130.go:14: fatal error: getoutarg: not a func RANGE
 BUG: should run
 
+=========== bugs/bug131.go
+BUG: should not compile
+
 =========== fixedbugs/bug016.go
 fixedbugs/bug016.go:7: overflow converting constant to uint