port d287c819 (r42620)

  original commit message:
  [RELAND with one change: until literal arrays are rooted in the outer
  feedback vector (coming in the next days), the runtime-scope.cc change
  is held off.]

  When a function is declared in global scope, the closure is created
  by the DeclareGlobals runtime service. It needs a pointer to the
  literals array, already allocated in the feedback vector. This
  fixes a bug where it's behavior wasn't in sync with CreateClosure,
  which accepts the literals from the vector.

  This enables a follow-on performance improvement in the CompileLazy
  builtin.

BUG=

Review-Url: https://codereview.chromium.org/2653893002
Cr-Commit-Position: refs/heads/master@{#42641}