port 00df60d1 (r30219).

original commit message:

    Makes the following modifications to the interpreter builtins and
    InterpreterAssembler:
     - Adds an accumulator register and initializes it to undefined()
     - Adds a register file pointer register and use it instead of FramePointer to
       access registers
     - Modifies builtin to support functions with 0 regiters in the register file
     - Modifies builtin to Call rather than TailCall to first bytecode handler.

BUG=

Review URL: https://codereview.chromium.org/1304593002

Cr-Commit-Position: refs/heads/master@{#30289}