`search codecache` command does not work as following:

```
hsdb> search codecache 0x7fedbd0aec90
java.lang.RuntimeException: Unable to deduce type of CodeBlob from address 0x00007fedbc85e810 (expected type nmethod, RuntimeStub, SafepointBlob, DeoptimizationBlob, or ExceptionBlob)
        at jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.createCodeBlobWrapper(CodeCache.java:177)
        at jdk.hotspot.agent/sun.jvm.hotspot.memory.CodeHeap.iterate(CodeHeap.java:111)
        at jdk.hotspot.agent/sun.jvm.hotspot.code.CodeCache.iterate(CodeCache.java:185)
        at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor$40.doit(CommandProcessor.java:1535)
        at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2051)
        at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2021)
        at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.run(CommandProcessor.java:1901)
        at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:99)
        at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:40)
        at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runCLHSDB(SALauncher.java:280)
        at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:483)
```

I checked the Object which points 0x7fedbd0aec90, it was `VtableBlob`. It has been introduced in JDK-8199406, but it did not change SA code.

SA should support `VtableBlob`.