[llvm] [ORC] Preserve order of constructors with same priority (PR #95532)

[David Spickett via llvm-commits]

DavidSpickett wrote:

Some of them are missing but they have empty lines where they should be:
```
$ /home/david.spickett/build-llvm-arm/bin/lli -jit-kind=orc /home/david.spickett/llvm-project/llvm/test/ExecutionEngine/Orc/global-ctor-order.ll
H1

H3

M2

1
2
3
4
5
6
7
8
9
10

12

14

16
```

https://github.com/llvm/llvm-project/pull/95532