TEST
  1. TEST

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Dmitri Hrybenko
f629a7ffe4e
Dmitri Hrybenko committed ea0676147c3
stdlib/String: add more tests for COW behavior in String (I verified that they
fail when fix for rdar://problem/18114265 is reverted, so I removed the
original test that depends on regular expressions and Foundation)

This uncovered more issues: <rdar://problem/18160335> String.replaceRange and
String.removeRange reallocate unique storage


Swift SVN r21525