If the object is shared, instead of detaching, copy characters from
"this" to a new object except for the chacters that would be erased,
this is more efficient than detaching (which would copy the whole data
then erase).
- Extend tst_QString::removeIf() to catch a corner-case (that I saw
with tst_QByteArray::removeIf()).
- Add q_uninitialized_remove_copy_if, which works like
std::remove_copy_if but for uninitialized memory like
q_uninitialized_relocate_n (but copies rather than relocates/moves).
With the same static_assert from q_relocate_overlap_n that the type
destructor is non-throwing.
Added q_uninitialized_remove_copy_if in this commit rather than a
separate one so that it's unittested by its usage in eraseIf().
[ChangeLog][QtCore][QString, QByteArray] Removing characters from a
currently shared string or byte array is now done more efficiently
Task-number: QTBUG-106181
Task-number: QTBUG-106183
Change-Id: Icc0ed31633cef71d482b97e0d2d20d763163d383
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>