[Issue 18110] most of phobos should be @safe-ly useable

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18110

Seb <greensunny12 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |18166, 18167, 18168, 18169,
                   |                            |18170, 18171, 18172, 18173,
                   |                            |18174, 18175, 18176, 18177


Referenced Issues:

https://issues.dlang.org/show_bug.cgi?id=18166
[Issue 18166] std.array.replace should be usable in @safe for dstrings
https://issues.dlang.org/show_bug.cgi?id=18167
[Issue 18167] std.array.appender should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18168
[Issue 18168] std.base64.encode for output ranges should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18169
[Issue 18169] std.concurrency should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18170
[Issue 18170] std.functional.memoize should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18171
[Issue 18171] std.functional.toDelegate should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18172
[Issue 18172] std.getopt should allow taking parameters by `ref` (like
std.format.formattedRead), s.t. it can be used in @safe
https://issues.dlang.org/show_bug.cgi?id=18173
[Issue 18173] std.json should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18174
[Issue 18174] std.math.equalsDigit should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18175
[Issue 18175] std.mmfile should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18176
[Issue 18176] std.numeric.gapWeightedSimilarity should be usable in @safe
https://issues.dlang.org/show_bug.cgi?id=18177
[Issue 18177] std.parallelism should be usable in @safe
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