added some execution test

test/fixtures/execution/array_comprehension.cs

@@ -0,0 +1,4 @@
+nums: n * n for n in [1, 2, 3] if n % 2 aint 0.
+result: n * 2 for n in nums.
+
+print(result.join(',') is '2,18')

test/fixtures/execution/array_comprehension.js

@@ -0,0 +1,21 @@
+(function(){
+  var nums;
+  var a = [1, 2, 3];
+  var d = [];
+  for (var b=0, c=a.length; b<c; b++) {
+    var n = a[b];
+    if (n % 2 !== 0) {
+      nums = d.push(n * n);
+    }
+  }
+  nums = d;
+  var result;
+  var e = nums;
+  var h = [];
+  for (var f=0, g=e.length; f<g; f++) {
+    n = e[f];
+    h[f] = n * 2;
+  }
+  result = h;
+  print(result.join(',') === '2,18');
+})();

test/fixtures/execution/assign_to_try_catch.cs

@@ -0,0 +1,6 @@
+result: try
+  nonexistent * missing
+catch error
+  true.
+
+print(result)

test/fixtures/execution/assign_to_try_catch.js

@@ -0,0 +1,9 @@
+(function(){
+  var result;
+  try {
+    result = nonexistent * missing;
+  } catch (error) {
+    result = true;
+  }
+  print(result);
+})();

test/fixtures/execution/fancy_if_statement.cs

@@ -0,0 +1,11 @@
+a: b: d: true
+c: false
+
+result: if a
+  if b
+    if c then false
+    else
+      if d
+        true....
+
+print(result)

test/fixtures/execution/fancy_if_statement.js

@@ -0,0 +1,6 @@
+(function(){
+  var a = b = d = true;
+  var c = false;
+  var result = a ? b ? c ? false : d ? true : null : null : null;
+  print(result);
+})();