RFR: 8273346: Expand library mappings to IEEE 754 operations [v5]

[Joe Darcy]

> Generally add apiNote's to map from Java library methods to particular IEEE 754 operations. For now, I only added such notes to java.lang.Math and not java.lang.StrictMath.

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Correct typo found in review and reflow paragraph.

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8876/files
  - new: https://git.openjdk.java.net/jdk/pull/8876/files/ba3e9a75..b82f2668

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8876&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8876&range=03-04

  Stats: 8 lines in 1 file changed: 0 ins; 0 del; 8 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8876.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8876/head:pull/8876

PR: https://git.openjdk.java.net/jdk/pull/8876