port 9846f386 (r32205)

  original commit message:
  The literal index is being pushed onto the stack while evaluating
  the non-constant subexpressions, but never used in fullcodegen (and
  hence not used in the optimizing compilers).

BUG=

Review URL: https://codereview.chromium.org/1477673002

Cr-Commit-Position: refs/heads/master@{#32241}