[jdk13u-dev] RFR: 8250605: Linux x86_32 builds fail after JDK-8249821

[Olga Mikhaltsova]

I'd like to backport JDK-8250605 to jdk13u for parity with jdk11u.
The patch applied manually because the patched file is in another directory: make/lib/Awt2dLibraries.gmk instead of make/modules/java.desktop/lib/Awt2dLibraries.gmk.
I observed the same cast warnings (not errors due to --disable-warnings-as-errors) at the compile time on the Linux 32 bits platform.

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Commit messages:
 - Backport 5b99c6ae1f442f670fdb4dbf99987d5cc08033b5

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/302/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=302&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8250605
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/302.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/302/head:pull/302

PR: https://git.openjdk.java.net/jdk13u-dev/pull/302