function translate$2(out, a, v) {
    var a00 = a[0],
        a01 = a[1],
        a02 = a[2],
        a10 = a[3],
        a11 = a[4],
        a12 = a[5],
        a20 = a[6],
        a21 = a[7],
        a22 = a[8],
        x = v[0],
        y = v[1];
    out[0] = a00;
    out[1] = a01;
    out[2] = a02;
    out[3] = a10;
    out[4] = a11;
    out[5] = a12;
    out[6] = x * a00 + y * a10 + a20;
    out[7] = x * a01 + y * a11 + a21;
    out[8] = x * a02 + y * a12 + a22;
    return out;
  }
Translate a mat3 by the given vector

@param {mat3} out the receiving matrix
@param {ReadonlyMat3} a the matrix to translate
@param {ReadonlyVec2} v vector to translate by
@returns {mat3} out