RFR(S) 8251560 Remove excessive header file inclusion from systemDictionary.hpp and others

[Coleen Phillimore]

On 8/14/20 2:35 PM, Coleen Phillimore wrote:
>
> I really like this change.  It looks like you need a classLoadInfo.hpp 
> file with the constructors.
Oops, I mean classLoadInfo.cpp file.
>
> Thanks,
> Coleen
>
> On 8/14/20 12:54 PM, Ioi Lam wrote:
>> https://bugs.openjdk.java.net/browse/JDK-8251560
>> http://cr.openjdk.java.net/~iklam/jdk16/8251560-remove-includes-in-system-dict-etc.v01/ 
>>
>>
>> Summary:
>>
>> I removed a few unnecessary #includes from systemDictionary.hpp, 
>> signature.hpp, altHashing.hpp and klass.inline.hpp
>>
>> Two rarely used classes are moved to a new header file classLoadInfo.hpp
>>
>> Some non-critical inline functions were moved to cpp files.
>>
>> Some cpp files needed to be updated (because they didn't explicitly 
>> declare dependencies on header files that were transitively included 
>> by other header files).
>>
>> Tested with mach5 tier1 and also local Linux builds (no-pch, minimal 
>> VM, etc).
>> Thanks
>> - Ioi
>