RFR: 8283607: Rename KlassID to KlassKind [v2]

[Stefan Karlsson]

> During the review of JDK-8283574 / #7922 , it was brought up that the term ID to describe the "kind" of *Klass is misleading. Rename KlassID to KlassKind, and update names of variables of KlassID.

Stefan Karlsson has updated the pull request incrementally with one additional commit since the last revision:

  Fix missing rename bug

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7936/files
  - new: https://git.openjdk.java.net/jdk/pull/7936/files/31718879..5a3ab9ba

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7936&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7936&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7936.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7936/head:pull/7936

PR: https://git.openjdk.java.net/jdk/pull/7936