[mlir] add getViewDest method to viewLikeOpInterface (#154524) The viewLikeOpInterface abstracts the behavior of an operation view one buffer as another. However, the current interface only includes a "getViewSource" method and lacks a "getViewDest" method. Previously, it was generally assumed that viewLikeOpInterface operations would have only one return value, which was the view dest. This assumption was broken by memref.extract_strided_metadata, and more operations may break these silent conventions in the future. Calling "viewLikeInterface->getResult(0)" may lead to a core dump at runtime. Therefore, we need 'getViewDest' method to standardize our behavior. This patch adds the getViewDest function to viewLikeOpInterface and modifies the usage points of viewLikeOpInterface to standardize its use.
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