8334432: Refine Float16.fma

[jddarcy]

Adding comments and test cases for Float16.fma.

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Progress

• [x] Change must not contain extraneous whitespace

Issue

• JDK-8334432: Refine Float16.fma (Enhancement - P4)

Reviewers

• Jatin Bhateja (@jatin-bhateja - Committer) ⚠️ Review applies to 2a321de9

Contributors

• Raffaello Giulietti <[email protected]>

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/valhalla.git pull/1143/head:pull/1143
$ git checkout pull/1143

Update a local copy of the PR:
$ git checkout pull/1143
$ git pull https://git.openjdk.org/valhalla.git pull/1143/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1143

View PR using the GUI difftool:
$ git pr show -t 1143

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/valhalla/pull/1143.diff

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