RFR: JDK-8141261 Clean up building of demos

[Erik Joelsson]

Looks good, nice work!

/Erik

On 2015-11-03 10:25, Magnus Ihse Bursie wrote:
> The handling of demos has not been up to the same quality as the rest 
> of the build. Worst of all is the use of non-named argument macros, 
> which makes the macro calls very hard to decipher.
>
> The driver behind this fix is that I need to understand properly this 
> code to be able to clean up flag handling. But when addressing that, I 
> used to chance to also give CompileDemos some well-needed TLC. For 
> instance, I have also fixed so:
> * "make clean-demos" clean demos.
> * Moved closed logic out of open makefiles
> * Long specialized recipes are now using simpler, more integrated 
> approaches
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8141261
> WebRev: 
> http://cr.openjdk.java.net/~ihse/JDK-8141261-clean-up-demos/webrev.01
>
> /Magnus