CheckSegmentedCodeCache test fails in an emulated-client VM

If the VM is an emulated-client, providing the flag -XX:+TieredCompilation does not print a warning or an error and the test case does no longer detect that it is executed in a client VM. Hence some of its assertions are wrong and the test fails with:

java.lang.RuntimeException: No code cache segmentation.
at compiler.codecache.CheckSegmentedCodeCache.verifySegmentedCodeCache(CheckSegmentedCodeCache.java:64)
at compiler.codecache.CheckSegmentedCodeCache.main(CheckSegmentedCodeCache.java:109)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)