RFR: 8275771: JDK source code contains redundant boolean operations in jdk.compiler and langtools [v3]

[Vicente Romero]

> Hi,
> 
> Please review this PR which is basically rewriting some redundant boolean expressions in the compiler.
> 
> TIA

Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:

  addressing review comments

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6599/files
  - new: https://git.openjdk.java.net/jdk/pull/6599/files/012779d4..d009c43f

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6599&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6599&range=01-02

  Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6599.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6599/head:pull/6599

PR: https://git.openjdk.java.net/jdk/pull/6599