Revert "Merge pull request #2573 from nordlow/inout-array"

This reverts commit 4ae1b147a35236edc97cf6cb63ff98fb1b4d5268, reversing
changes made to 335228cb079ccc2060790a2b23bca5db645fa7f0.

Conflicts:
	std/container/array.d
Add unittest to prevent repeating regression

See https://issues.dlang.org/show_bug.cgi?id=13621
Merge pull request #2643 from Dicebot/revert-regression

[REG] Revert PR 2573