gc.c: rename constant names HEAP_* to PAGE_*.
Keys of GC::INTERNAL_CONSTANTS are also renamed.
test/ruby/test_gc.rb: catch up this fix.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
gc.c: rename constant names HEAP_* to PAGE_*.
Keys of GC::INTERNAL_CONSTANTS are also renamed.
test/ruby/test_gc.rb: catch up this fix.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53468 b2dd03c8-39d4-4d8f-98ff-823fe69b080e