RFR: 8300682: InstanceKlassMiscStatus is a bad name [v2]

[Coleen Phillimore]

> This patch is to simply rename InstanceKlassMiscStatus to InstanceKlassFlags.  This matches the naming for upcoming Field changes that add a FieldFlags class.
> Tested with tier1-4.

Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:

  Fix include guards.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/12106/files
  - new: https://git.openjdk.org/jdk/pull/12106/files/fba9a31e..2b79fd3c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12106&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12106&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/12106.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12106/head:pull/12106

PR: https://git.openjdk.org/jdk/pull/12106