Emit does not preserve empty lines

Hi,

TS Version: 1.1

Given

function foo() {

    var x = 10;

    var y = 11;
}

We used to get

function foo() {
    var x = 10;

    var y = 11;
}

In the new compiler the line break is missing

function foo() {
    var x = 10;
    var y = 11;
}

(Both compilers removed the first empty line, but the new compiler has gone a step further.)

This can affect the experience when debugging JavaScript in the browser.

[ppsimatikas]

The crowd wants preserveWhitespace: true/false @ORESoftware ++

[ghost]

I would also like this for a similar reason as @timjmartel - when developers see the emitted JS looks nice they are less resistant to adopt. Preserving (at least vertical) whitespace makes the code look less like it was generated by a machine and more like idomatic JS code written by a human.

If our team ever decided to abandon TS and instead continue with the transpiled JS it would be much easier to adopt the emitted JS sources if they had human-friendly whitespace.