hg: code-tools/jtharness: 7902539: Update JTH core codebase to make it compilable with JDK11

[dmitry.bessonov at oracle.com]

Changeset: 0eb9de9d7494
Author:    dbessono
Date:      2019-11-23 15:43 +0000
URL:       https://hg.openjdk.java.net/code-tools/jtharness/rev/0eb9de9d7494

7902539: Update JTH core codebase to make it compilable with JDK11

! src/com/sun/javatest/JavaTestSecurityManager.java
! src/com/sun/javatest/exec/NavigationPane.java
! src/com/sun/javatest/exec/TT_TestNode.java
! src/com/sun/javatest/mrep/BrowserPane.java