[Issue 18760] theAllocator should hold a reference to the allocator that it uses

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18760

--- Comment #1 from github-bugzilla at puremagic.com ---
Commit pushed to master at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/4126f928270570c9149a6412acde16f16506fd39
Merge pull request #6449 from edi33416/fix_thread_alloc

Fix Issue 18760 - theAllocator dangling reference bug

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