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

From: @louie5
Reviewed-by: @zh_qh,@ouwenchang
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From: @zjun3021
Reviewed-by: @chujinjin,@kisnwang
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From: @ouwenchang
Reviewed-by: @yelihua
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From: @hwhewei
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From: @anancds
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

From: @yuzhenhua666
Reviewed-by: @wuxuejian,@oacjiewen
Signed-off-by: @oacjiewen

From: @changzherui
Reviewed-by: @kingxian,@xu-yfei
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From: @zhangxiaoxiao16
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From: @xiefangqi
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From: @xiefangqi
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From: @yanglf1121
Reviewed-by: @guoqi1024,@liangchenghui
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From: @yanglf1121
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From: @zhoufeng54
Reviewed-by: @kisnwang,@xu-yfei
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From: @david-he91
Reviewed-by: @liangchenghui,@guoqi1024
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From: @liujunzhu
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From: @xu_anyue
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From: @heleiwang
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From: @luopengting
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From: @lianliguang
Reviewed-by: @kisnwang,@chujinjin
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From: @chenfei52
Reviewed-by: @ginfung,@zh_qh
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From: @tina_mengting_zhang
Reviewed-by: @mikef,@robingrosman
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From: @tom__chen
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From: @peilin-wang
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From: @peilin-wang
Reviewed-by: @tom__chen,@robingrosman
Signed-off-by: @robingrosman

fix testcases in c_api_transforms_test.cc

From: @islam_amin
Reviewed-by: @john_tzanakakis,@tom__chen
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From: @zh_qh
Reviewed-by: @ginfung,@stsuteng
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From: @yepei6
Reviewed-by: @kingxian,@kisnwang
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From: @zh_qh
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From: @liangzhibo
Reviewed-by: @kingxian,@jpc_chenjianping
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Signed-off-by: zjun <zhangjun0@huawei.com>

From: @changzherui
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From: @wilfchen
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

1. add trigger point
2. reduce unuse import
3. modify GetRealFilePath

---
Remove the routine of handling isolated nodes in Renormalize.
Add isolated nodes from Parser&Resolver.
Modify isolated nodes handling in FG&Manager.
Optimize the renormalize routines.
Other optimizations.