Properly attribute all builtins, bytecode handlers and other stubs to
the calling function unless --separate-ic is passed.

R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2668953002
Cr-Original-Commit-Position: refs/heads/master@{#42849}
Committed: https://chromium.googlesource.com/v8/v8/+/42011d29975898c3648241749cf1e96eac074b85
Review-Url: https://codereview.chromium.org/2668953002
Cr-Commit-Position: refs/heads/master@{#42852}