[turbofan] Add more typing rules for Array.prototype builtins.
For a couple of those Array builtins we can specify a useful type that will help us to eliminate a couple of checks on their outputs. R=yangguo@chromium.org BUG=v8:5267 Review-Url: https://codereview.chromium.org/2529233002 Cr-Commit-Position: refs/heads/master@{#41295}
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