hg: jdk-updates/jdk11u-dev: 8236921: Add build target to produce a JDK image suitable for a Graal/SVM build

[gnu.andrew at redhat.com]

Changeset: 129d366c0a10
Author:    sgehwolf
Date:      2019-12-16 11:06 +0100
URL:       https://hg.openjdk.java.net/jdk-updates/jdk11u-dev/rev/129d366c0a10

8236921: Add build target to produce a JDK image suitable for a Graal/SVM build
Summary: make graal-builder-image will produce a suitable build JDK
Reviewed-by: neugens, adinn, andrew

+ make/GraalBuilderImage.gmk
! make/Main.gmk
! make/autoconf/spec.gmk.in