cgo: process DWARF info even when debug data is used for value

Always process the DWARF info, even when the const value is determined
using the debug data block. This ensures that the injected enum is
removed and future loads of the same constant do not trigger
inconsistent definitions.

Add tests for issues 2470 and 4054.
Fixes issue 4054.

R=golang-dev, fullung, dave, rsc, minux.ma
CC=golang-dev
http://codereview.appspot.com/6501101

1 files changed, 1 insertions, 0 deletions

diff --git a/misc/cgo/test/cgo_test.go b/misc/cgo/test/cgo_test.go
index c3c35b53c..3b866290f 100644
--- a/misc/cgo/test/cgo_test.go
+++ b/misc/cgo/test/cgo_test.go
@@ -16,6 +16,7 @@ func TestEnum(t *testing.T)                { testEnum(t) }
 func TestAtol(t *testing.T)                { testAtol(t) }
 func TestErrno(t *testing.T)               { testErrno(t) }
 func TestMultipleAssign(t *testing.T)      { testMultipleAssign(t) }
+func TestUnsignedInt(t *testing.T)         { testUnsignedInt(t) }
 func TestCallback(t *testing.T)            { testCallback(t) }
 func TestCallbackGC(t *testing.T)          { testCallbackGC(t) }
 func TestCallbackPanic(t *testing.T)       { testCallbackPanic(t) }