V8: Add SIMD functions for Phase 1.

V8: Add SIMD functions for Phase 1.

Float32x4:
  abs, neg, sqrt, reciprocalApproximation, reciprocalSqrtApproximation, add, sub, mul, div,
  min, max, minNum, maxNum, lessThan, lessThanOrEqual, greaterThan, greaterThanOrEqual,
  equal, notEqual, select, swizzle, shuffle, fromInt32x4, fromInt32x4Bits, fromInt16x8Bits,
  fromInt8x16Bits.

Int32x4:
  neg, add, sub, mul, min, max, and, or, xor, not, shiftLeftByScalar, shiftRightLogicalByScalar,
  shiftRightArithmeticByScalar, lessThan, lessThanOrEqual, greaterThan, greaterThanOrEqual,
  equal, notEqual, select, swizzle, shuffle, fromFloat32x4, fromFloat32x4Bits, fromInt16x8Bits,
  fromInt8x16Bits.

Int16x8:
  neg, add, sub, mul, min, max, and, or, xor, not, shiftLeftByScalar, shiftRightLogicalByScalar,
  shiftRightArithmeticByScalar, lessThan, lessThanOrEqual, greaterThan, greaterThanOrEqual,
  equal, notEqual, select, swizzle, shuffle, fromFloat32x4Bits, fromInt32x4Bits, fromInt8x16Bits.

Int8x16:
  neg, add, sub, mul, min, max, and, or, xor, not, shiftLeftByScalar, shiftRightLogicalByScalar,
  shiftRightArithmeticByScalar, lessThan, lessThanOrEqual, greaterThan, greaterThanOrEqual,
  equal, notEqual, select, swizzle, shuffle, fromFloat32x4Bits, fromInt32x4Bits, fromInt16x8Bitss.

Bool32x4, Bool16x8, Bool8x16:
  and, or, not, anyTrue, allTrue, select, swizzle, shuffle.

I might have forgotten a few.

LOG=N
BUG=v8:4124

Review URL: https://codereview.chromium.org/1230343003

Cr-Commit-Position: refs/heads/master@{#30051}