[Dy2St] fix name conflict between mulitple to_static program
#52692
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PR types
Bug fixes
PR changes
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Describe
修复子图 Fallback 时遇到的多个
to_static生成的 Program 之间存在 name 冲突的问题，因此清除 Eager Tensor 的 name 以避免此问题问题的原因为两个
to_static之间使用了enable_static+disable_static切换到了一个新的unique_name.guard（infermeta 里会这样做），导致新的命名重新开始，因此会冲突另外由于动转静单测已经迁移到了好像有点问题，暂时不移动了test/dygraph_to_static下，因此将 #52110 没有迁移的新单测一并移过去PCard-66972