[llgo] Roll gofrontend forward

Switch gofrontend to using go.googlesource.com, and
update to 81eb6a3f425b2158c67ee32c0cc973a72ce9d6be.

There are various changes required to update to the
go 1.5 runtime:

typemap.go is changed to accommodate the change in representation for equal/hash algorithms, and the removal of the zero value/type.
CMakeLists.txt is updated to add the build tree to the package search path, so internal packages, which are not installed, are found.
various files changes due to removal of __go_new_nopointers; the same change as in D11863, but with NoUnwindAttribute added to the added runtime functions which are called with "callOnly".
minor cleanups in ssa.go while investigating issues with unwinding/panic handling.

Differential Revisision: http://reviews.llvm.org/D15188

llvm-svn: 263536

1 files changed, 3 insertions, 25 deletions

diff --git a/llgo/third_party/gofrontend/libgo/go/net/file_stub.go b/llgo/third_party/gofrontend/libgo/go/net/file_stub.go
index 4281072ef93..0f7460c7579 100644
--- a/llgo/third_party/gofrontend/libgo/go/net/file_stub.go
+++ b/llgo/third_party/gofrontend/libgo/go/net/file_stub.go
@@ -11,28 +11,6 @@ import (
 	"syscall"
 )
 
-// FileConn returns a copy of the network connection corresponding to
-// the open file f.  It is the caller's responsibility to close f when
-// finished.  Closing c does not affect f, and closing f does not
-// affect c.
-func FileConn(f *os.File) (c Conn, err error) {
-	return nil, syscall.ENOPROTOOPT
-
-}
-
-// FileListener returns a copy of the network listener corresponding
-// to the open file f.  It is the caller's responsibility to close l
-// when finished.  Closing l does not affect f, and closing f does not
-// affect l.
-func FileListener(f *os.File) (l Listener, err error) {
-	return nil, syscall.ENOPROTOOPT
-
-}
-
-// FilePacketConn returns a copy of the packet network connection
-// corresponding to the open file f.  It is the caller's
-// responsibility to close f when finished.  Closing c does not affect
-// f, and closing f does not affect c.
-func FilePacketConn(f *os.File) (c PacketConn, err error) {
-	return nil, syscall.ENOPROTOOPT
-}
+func fileConn(f *os.File) (Conn, error)             { return nil, syscall.ENOPROTOOPT }
+func fileListener(f *os.File) (Listener, error)     { return nil, syscall.ENOPROTOOPT }
+func filePacketConn(f *os.File) (PacketConn, error) { return nil, syscall.ENOPROTOOPT }