From: @fangzehua
Reviewed-by: 
Signed-off-by:

From: @fangzehua
Reviewed-by: 
Signed-off-by:

From: @yangzhenzhang
Reviewed-by: 
Signed-off-by:

From: @chuckchen521
Reviewed-by: 
Signed-off-by:

From: @liujunzhu
Reviewed-by: @zhoufeng54,@guoqi1024
Signed-off-by: @guoqi1024

From: @liangzhibo
Reviewed-by: 
Signed-off-by:

From: @yangzhenzhang
Reviewed-by: 
Signed-off-by:

From: @zh_qh
Reviewed-by: @ginfung,@hwhewei
Signed-off-by: @ginfung

From: @Margaret_wangrui
Reviewed-by: 
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From: @Margaret_wangrui
Reviewed-by: 
Signed-off-by:

The basic idea is: exploits data dependency to control the execution order
of side-effect operations, and keep the semantics of ANF unchanged.

The ControlDepend primitive is removed and there are two primitives added:

1. UpdateState:
```
  a = Assign(para, value)
```
became:
```
  a = Assign(para, value, u)
  u = UpdateState(u, a)
```

2. Load:
```
  x = Add(para, value)
```
became:
```
  p = Load(para, u)
  x = Add(p, value)
  u = UpdateState(u, p)
```

From: @liangzhibo
Reviewed-by: @ginfung
Signed-off-by:

From: @jinyaohui
Reviewed-by: 
Signed-off-by:

From: @yangzhenzhang
Reviewed-by: @cristoval,@stsuteng
Signed-off-by: @stsuteng

From: @fangzehua
Reviewed-by: 
Signed-off-by: