RFR: JDK-8310267: Javadoc for Class#isPrimitive() is incorrect regarding Class objects for primitives [v2]

[Joe Darcy]

> Correct misstatement that the Class object for a primitive type can only be be access via fields like java.lang.Integer.TYPE.

Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - Respond to review feedback.
 - Respond to review feedback.
 - Merge branch 'master' into JDK-8310267
 - Fix whitespace.
 - JDK-8310267: Javadoc for Class#isPrimitive() is incorrect regarding Class objects for primitives

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14574/files
  - new: https://git.openjdk.org/jdk/pull/14574/files/fdb9b67a..9d05b090

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14574&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14574&range=00-01

  Stats: 6296 lines in 326 files changed: 3053 ins; 909 del; 2334 mod
  Patch: https://git.openjdk.org/jdk/pull/14574.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14574/head:pull/14574

PR: https://git.openjdk.org/jdk/pull/14574