Translator: Fix ClampIndirectIndices vs. unsized arrays A deepCopy() was missing from this code path, which led to an AST validation error. However, clamping indices for unsized arrays is not strictly correct. For example, an out of bounds write with robustness is expected to be dropped, not overwrite the last element. Since robustness already covers storage blocks, this clamping is no longer done. Bug: angleproject:7712 Change-Id: I96dd18ef47cd453f19391bdccbd4372c24854ade Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3924863 Reviewed-by: Yuxin Hu <yuxinhu@google.com> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>