TestAllocateHeapAt.java expects that creating the heap file works in the current director (`.`). But when using persistent hugepages (-XX:+UseLargePages) this would require the filesystem to be a HugeTLBFS.

I propose that we do not allow running these tests with persistent hugepages.

The following two tests fail in the JDK24 CI:

gc/z/TestAllocateHeapAt.java
gc/x/TestAllocateHeapAt.java

This is seen with hugepages testing. We see warnings in the output then the VM fails to start:

----------System.err:(36/2261)----------
Java HotSpot(TM) 64-Bit Server VM warning: Failed to reserve and commit memory using large pages. req_addr: 0x0000000399000000 bytes: 18907922432
 stdout: [[0.005s][info][gc,init] Initializing The Z Garbage Collector
[0.005s][info][gc,init] Version: 24-ea+16-1680 (fastdebug)
[0.005s][info][gc,init] Using deprecated non-generational mode
[0.005s][info][gc,init] NUMA Support: Disabled
[0.005s][info][gc,init] CPUs: 12 total, 12 available
[0.005s][info][gc,init] Memory: 72098M
[0.005s][info][gc,init] Large Page Support: Enabled (Explicit)
[0.005s][info][gc,init] GC Workers: 1 (dynamic)
[0.005s][info][gc,init] Address Space Type: Contiguous/Unrestricted/Complete
[0.005s][info][gc,init] Address Space Size: 512M x 3 = 1536M
[0.005s][info][gc,init] Heap Backing File: ./#506511511
[0.005s][info][gc,init] Heap Backing Filesystem: other (0x58465342)
[0.005s][error][gc ] -XX:+UseLargePages (without -XX:+UseTransparentHugePages) can only be enabled when using a hugetlbfs filesystem
[0.006s][info ][gc,init] Runtime Workers: 1
[0.006s][info ][gc ] Using The Z Garbage Collector
];
 stderr: [Java HotSpot(TM) 64-Bit Server VM warning: Option ZGenerational was deprecated in version 23.0 and will likely be removed in a future release.
Java HotSpot(TM) 64-Bit Server VM warning: Non-generational ZGC is deprecated.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
]
 exitValue = 1