RFR: 8258896: Remove the JVM ForceFloatExceptions option [v3]

[Harold Seigel]

> Please review this change to replace the JVM ForceFloatExceptions flag with #ifdef (_DEBUG).  The change was tested with tiers 1 and 2 on Linux, Windows, and Mac OS, and tiers 3-5 on Windows x64.
> 
> Thanks, Harold

Harold Seigel has updated the pull request incrementally with one additional commit since the last revision:

  8258896: Remove the JVM ForceFloatExceptions option

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1932/files
  - new: https://git.openjdk.java.net/jdk/pull/1932/files/c85737e1..a99d1987

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1932&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1932&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1932.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1932/head:pull/1932

PR: https://git.openjdk.java.net/jdk/pull/1932