RFR (also tedious) 8216167: Update include guards to reflect correct directories

[Kim Barrett]

> On Jan 4, 2019, at 10:36 AM, coleen.phillimore at oracle.com wrote:
> 
> Summary: Use script and some manual fixup to fix directores names in include guards.
> 
> Makes include guards match the current directory rooted at src/hotspot (removes VM_ in most cases).
> 
> This should be low risk.  Tested with mach5 tier1 and tier2.
> 
> https://bugs.openjdk.java.net/browse/JDK-8216167
> http://cr.openjdk.java.net/~coleenp/8216167.01.diff
> 
> I didn't generate a webrev as a space concern for cr.openjdk.java.net and nobody should click on it.  Script is posted in bug.  Will update and check copyright headers with hg commit.
> 
> Thanks,
> Coleen

There are incorrect changes in src/hotspot/cpu/arm/globalDefinitions_arm.hpp
The script is not being careful to *only* modify #include guards.  I didn’t look for other similar problems.
(This is an example of why I suggested rolling your own script might not actually be easier than using
the guardonce utilities.)