RFR: JDK-8055188: General cleanup of minor issues from source restructure

[Erik Joelsson]

Hello,

Please review this little collection of fixes for minor issues left over 
from the source code restructure push. These are mostly based on the 
comments provided by Magnus in that review.

Webrevs: http://cr.openjdk.java.net/~erikj/8055188/
Bug: https://bugs.openjdk.java.net/browse/JDK-8055188

The things fixed in this patch are:

* Moved jdk/make/bundle to jdk/make/data/bundle

* Removed leftover $(if $(SHUFFLED)... in GensrcSwing.gmk

* Removed no longer needed EXTRA_FILE in CreateJars.gmk

* Renamed SetupJava.gmk to SetupJavaCompilers.gmk

* Removed no longer used CopyIntoClasses.gmk

* Added a comment about fdlibm not being a part of the product directly

* Renamed LIBDIR, INCLUDEDIR and OPENJDK_TARGET_OS_INCLUDE to 
LIB_DST_DIR, INCLUDE_DST_DIR and INCLUDE_DST_OS_DIR in Copy*.gmk.

* Moved closed only native library definitions to closed makefiles.

* Fixed linker warnings on macosx for demos by adding a dependency 
forcing demos to be built after hotspot and java.base-libs.

* Fixed dependencies for main-jars from JDK-8055497.

/Erik