hg: jdk-updates/jdk11u-dev: 8232084: HotSpot build failed with GCC 9.2.1

[matthias.baesken at sap.com]

Changeset: df8e3cafa631
Author:    mbaesken
Date:      2019-10-18 09:57 +0900
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/df8e3cafa631

8232084: HotSpot build failed with GCC 9.2.1
Reviewed-by: sspitsyn, cjplummer, dholmes, iklam

! src/hotspot/share/services/diagnosticArgument.cpp
! src/hotspot/share/utilities/compilerWarnings.hpp
! test/hotspot/jtreg/vmTestbase/nsk/share/jvmti/jvmti_tools.c
! test/hotspot/jtreg/vmTestbase/vm/mlvm/share/mlvmJvmtiUtils.c