hg: jdk/client: 8074844: Resolve disabled warnings for libfontmanager

[philip.race at oracle.com]

Changeset: 5eed18005bf1
Author:    prr
Date:      2020-08-29 10:07 -0700
URL:       https://hg.openjdk.java.net/jdk/client/rev/5eed18005bf1

8074844: Resolve disabled warnings for libfontmanager
Reviewed-by: serb, ihse, erikj

! make/modules/java.desktop/lib/Awt2dLibraries.gmk
! src/java.desktop/share/native/libfontmanager/DrawGlyphList.c
! src/java.desktop/share/native/libfontmanager/freetypeScaler.c
! src/java.desktop/share/native/libfontmanager/hb-jdk-font.cc
! src/java.desktop/share/native/libfontmanager/hb-jdk.h
! src/java.desktop/unix/native/libfontmanager/X11FontScaler.c
! src/java.desktop/windows/native/libfontmanager/lcdglyph.c