[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, 8 insertions, 0 deletions

diff --git a/llgo/third_party/liner/common.go b/llgo/third_party/liner/common.go
index 9424abe5d2b..53b8f8fd198 100644
--- a/llgo/third_party/liner/common.go
+++ b/llgo/third_party/liner/common.go
@@ -29,6 +29,9 @@ type commonState struct {
 	ctrlCAborts       bool
 	r                 *bufio.Reader
 	tabStyle          TabStyle
+	multiLineMode     bool
+	cursorRows        int
+	maxRows           int
 }
 
 // TabStyle is used to select how tab completions are displayed.
@@ -207,6 +210,11 @@ func (s *State) SetCtrlCAborts(aborts bool) {
 	s.ctrlCAborts = aborts
 }
 
+// SetMultiLineMode sets whether line is auto-wrapped. The default is false (single line).
+func (s *State) SetMultiLineMode(mlmode bool) {
+	s.multiLineMode = mlmode
+}
+
 func (s *State) promptUnsupported(p string) (string, error) {
 	if !s.inputRedirected || !s.terminalSupported {
 		fmt.Print(p)