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c7ce91501834b225bc9cf2d3fa2a319dd0b7f864 by Martijn Vels <mvels@google.com>:

Implement global data for CordzHandle in an ODR hardened way

This change puts the global data into a global delete queue structure, and stores a reference to the global data in the handle itself. This hardens the implementation against ODR violations where handles are crossing dynamic library boundaries which are privately loaded.

PiperOrigin-RevId: 368885636
GitOrigin-RevId: c7ce91501834b225bc9cf2d3fa2a319dd0b7f864
Change-Id: I9775151a760b30989dec9517e4bcd2183e8c1651