migrate StringView and ArrayView to @string.View and @array.View

[Yu-zh]

This PR is a replication #1576 without changes to BytesView. Instead, it only adds a typealias @bytes.View so that we can update the compiler to the new namings.

[coveralls]

Pull Request Test Coverage Report for Build 5234

Details

• 39 of 41 (95.12%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 85.921%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
array/view.mbt	34	36	94.44%

Totals
Change from base Build 5232:	0.1%
Covered Lines:	5450
Relevant Lines:	6343

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💛 - Coveralls