[277422] Make Pass2Parser concurrent!

Refactor HeapObject mapping from Pass2Parser into HprofParserHandlerImpl
Introduce Pass2Parser Spliterator
Continues decoupling of parser and parser handler.

Change-Id: I9ec77411244d8afbcfaa23f60f040dcb43ecb6b6
Signed-off-by: Jason Koch <jkoch@netflix.com>
3 files changed