Describe the bug
According to this, a Polyglot Sampler tab is supposed to be visible in VisualVM 2.0.3. It seems that it's still not showing up correctly.

To Reproduce
Steps to reproduce the behavior:

1. Run polyglot --jvm --shell with a GraalVM 20.1
2. Open VisualVM on the process

Expected behavior
Polyglot Sampler tab shows up.

Screenshots
The commit shows that VisualVM checks whether jvm.getVmName().contains("GraalVM"). java.vm.name properties of GraalVM 20.1.0 releases, however, do not contain "GraalVM":

GraalVM CE 20.1

GraalVM EE 20.1

Desktop (please complete the following information):

• OS: MacOS
• JDK version GraalVM CE 20.1.0