Request for review: 8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing

[Jiangli Zhou]

Hi Coleen and others,

Please review the webrev for moving the Method::_max_locals and 
Method::_size_of_parameters to ConstMethod:

   http://cr.openjdk.java.net/~jiangli/8004076/webrev.00/

Tested with jprt, runthese and vm.quick.testlist. No noticeable 
performance impact with the change.

==============================================================================
logs.maxlocal_baseline.spec.1:
   Benchmark           Samples        Mean     Stdev             Geomean 
Weight
   specjvm98                 8      546.91     12.58
==============================================================================
logs.maxlocal.spec.1:
   Benchmark           Samples        Mean     Stdev   %Diff     P  
Significant
   specjvm98                 8      547.44     12.13    0.10 
0.933            *
==============================================================================

==============================================================================
logs.maxlocal_baseline.jbb:
   Benchmark           Samples        Mean     Stdev             Geomean 
Weight
   specjbb2005               3    56898.90    481.78
==============================================================================
logs.maxlocal.jbb:
   Benchmark           Samples        Mean     Stdev   %Diff     P  
Significant
   specjbb2005               3    56901.46    613.98    0.00 
0.996            *
==============================================================================

Thanks,
Jiangli