RFR: 8243287: Removal of Unsafe::defineAnonymousClass

[Harold Seigel]

Please review this large change to remove Unsafe::defineAnonymousClass().  The change removes dAC relevant code and changes a lot of tests.  Many of the changed tests need renaming.  I hope to do this in a follow up RFE.  Some of the tests were modified to use hidden classes, others were deleted because either similar hidden classes tests already exist or they tested dAC specific functionality, such as host classes.

This change was tested with Mach5 tiers 1-2 on Linux, Mac OS, and Windows, and Mach5 tiers 3-7 on Linux x64.

Thanks, Harold

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Commit messages:
 - 8243287: Removal of Unsafe::defineAnonymousClass

Changes: https://git.openjdk.java.net/jdk/pull/3974/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3974&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8243287
  Stats: 3516 lines in 116 files changed: 69 ins; 3181 del; 266 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3974.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3974/head:pull/3974

PR: https://git.openjdk.java.net/jdk/pull/3974