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    Avoid GetMutable implicitly reset Var Type. · 22850661
    Xin Pan 提交于
    This can cause a lot of problem:
    1. Wrong operator implementation, Op can get a wrong type without failure.
    2. Anytype can be Get without defined in VarType.
    
    Also fix wrong STEP_SCOPE usage.
    
    test=develop
    22850661
variable.h 3.1 KB