Adding missing generated code from recent commits.

Also updated generated_code.sh to prevent this from happening in
the future.

Change-Id: Ib282e9b6c762a79d4b4e09bee06b14781cd2a4c1

tests/MyGame/Example2/Monster.go

@@ -9,6 +9,13 @@ type Monster struct {
 	_tab flatbuffers.Table
 }
 
+func GetRootAsMonster(buf []byte, offset flatbuffers.UOffsetT) *Monster {
+	n := flatbuffers.GetUOffsetT(buf[offset:])
+	x := &Monster{}
+	x.Init(buf, n + offset)
+	return x
+}
+
 func (rcv *Monster) Init(buf []byte, i flatbuffers.UOffsetT) {
 	rcv._tab.Bytes = buf
 	rcv._tab.Pos = i

tests/MyGame/Example2/Monster.py

@@ -7,6 +7,13 @@ import flatbuffers
 class Monster(object):
     __slots__ = ['_tab']
 
+    @classmethod
+    def GetRootAsMonster(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Monster()
+        x.Init(buf, n + offset)
+        return x
+
     # Monster
     def Init(self, buf, pos):
         self._tab = flatbuffers.table.Table(buf, pos)