Build-infra mismatch with full debug symbol control for hotspot

[David Holmes]

I may be mis-reading something here but was trying to determine why 
hotspot was still creating debuginfo/diz files when I thought I had 
disabled it at configure time.

In the old build the external variable that should be set to control FDS 
is FULL_DEBUG_SYMBOLS. This is turn will set the internal make variable 
ENABLE_FULL_DEBUG_SYMBOLS. This applies to JDK builds and hotspot 
builds, with the top-level build adding FULL_DEBUG_SYMBOLS to the 
HOTSPOT_BUILD_ARGUMENTS.

But in the new build the variable that is modified based on 
--disable-debug-symbols is ENABLE_DEBUG_SYMBOLS. And it gets set to yes 
or no, not 1 or 0. So hotspot will read spec.gmk and only find 
ENABLE_DEBUG_SYMBOLS:=no, for example, but that has no affect on FDS as 
it expects FULL_DEBUG_SYMBOLS to control things.

What is the best way to resolve this mismatch?

I've cc'd Dan as the FDS expert.

Thanks,
David