hg: build-infra/jdk8/jdk: Fix minor dependency problems in JObjC bridge generation on MacOSX that caused parts of the bridge to always be regenerated.

[fredrik.ohrstrom at oracle.com]

Changeset: 4cb190dcf236
Author:    ohrstrom
Date:      2012-10-30 23:30 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/jdk/rev/4cb190dcf236

Fix minor dependency problems in JObjC bridge generation on MacOSX that caused parts of the bridge to always be regenerated.

! makefiles/CompileJavaClasses.gmk
! makefiles/CompileNativeLibraries.gmk
! makefiles/GensrcJObjC.gmk