Merged revision(s) 81860-81861 from trunk:

Change make_shared to use the new _internal_get_untyped_deleter. Fixes #6830.
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Add allocate_shared_noinit.
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[SVN r81899]

libs/smart_ptr

@@ -1 +1 @@
-Subproject commit 7ab4f6ce92a54b5a804efddd4e0d6cb818a53ca4
+Subproject commit c14369aac9aafae47687522fded11e52d74f48c4