Move compiler-specific code out of runtime_support_common.

Helpers or utilities such as FindFieldFast are still in
runtime_support_common. But LLVM has different stacks, no callee-saves
and different exception mechanisms. Those won't belong to

Change-Id: Ibc43d7d53316941481a6a21815ddefdc1e6bdde6
4 files changed
tree: 0fb4767de9915243addbdb712563e1ac330da0d2
  1. .gitignore
  3. build/
  4. jdwpspy/
  5. src/
  6. test/
  7. tools/