Fix missing semi-colon in for loop and var body (#388)

We avoid adding a `;` for a variable declaration in for loop but this is only meant if the var declaration is inside of the `()` part of the for loop. Not if the body part.

Fixes #385

tests/for/__snapshots__/jsfmt.spec.js.snap

@@ -291,3 +291,12 @@ for (var i = 0; i < 10; ++i) {
 }
 "
 `;
+
+exports[`test var.js 1`] = `
+"for (a in b) var c = {}; [];
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+for (a in b)
+  var c = {};
+[];
+"
+`;

tests/for/var.js

@@ -0,0 +1 @@
+for (a in b) var c = {}; [];