Limit testing `Compiler.perfmap` and `System.dump_map` to just linux because they are only supported on linux.
Tested by running just this one test on linux-x64-debug, linux-aarch64-debug, macosx-aarch64, macosx-x64-debug, and windows-x64-debug ------------- Commit messages: - limit some dcmds to just linux because they are only supported on linux. Changes: https://git.openjdk.org/jdk/pull/20480/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20480&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8337667 Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/20480.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20480/head:pull/20480 PR: https://git.openjdk.org/jdk/pull/20480
