RFR: 8300740: Add @SuppressWarnings option "lossy-conversions" description to jdk.compiler module javadoc and javac man page

[Adam Sotona]

Hi,
@SuppressWarnings option "lossy-conversions" has been added to JDK 20 (see JDK-8286377), however the option description is missing in jdk.compiler module javadoc and javac man page.
This patch add missing javadoc decription to jdk.compiler module-info.java

Please review.

Thanks,
Adam

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Commit messages:
 - 8300740: Add @SuppressWarnings option "lossy-conversions" description to jdk.compiler module javadoc and javac man page

Changes: https://git.openjdk.org/jdk/pull/12111/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12111&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300740
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/12111.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12111/head:pull/12111

PR: https://git.openjdk.org/jdk/pull/12111