add traceur test suite

test/fixtures/traceur/ArrayComprehension/ArgumentsInComprehension.js

@@ -0,0 +1,12 @@
+// Options: --array-comprehension
+// https://github.com/google/traceur-compiler/issues/1086
+
+function f() {
+  var a = [for (x of [1]) arguments[0]];
+  var b = [for (x of [1]) arguments[0]];
+  assert.deepEqual(a, [arguments[0]]);
+  assert.deepEqual(a, [42]);
+  assert.deepEqual(a, b);
+}
+
+f(42);

test/fixtures/traceur/ArrayComprehension/Closure.js

@@ -0,0 +1,11 @@
+// Options: --array-comprehension --block-binding
+// Block binding is needed to get the right scoping semantics inside the arrow
+// function in the comprehension.
+
+var res = [for (x of [0, 1]) for (y of [2, 3]) () => [x, y]];
+
+assert.equal(4, res.length);
+assertArrayEquals([0, 2], res[0]());
+assertArrayEquals([0, 3], res[1]());
+assertArrayEquals([1, 2], res[2]());
+assertArrayEquals([1, 3], res[3]());

test/fixtures/traceur/ArrayComprehension/Error_Disabled.js

@@ -0,0 +1,4 @@
+// Options: --array-comprehension=false
+// Error: :4:14: Unexpected token for
+
+var array = [for (x of [0, 1, 2, 3, 4]) x];

test/fixtures/traceur/ArrayComprehension/Error_NotDefined.js

@@ -0,0 +1,5 @@
+// Options: --array-comprehension --free-variable-checker
+// Error: :5:1: notDefined is not defined
+
+var array = [for (notDefined of [0]) notDefined];
+notDefined;

test/fixtures/traceur/ArrayComprehension/Simple.js

@@ -0,0 +1,32 @@
+// Options: --array-comprehension
+
+function* range() {
+  for (var i = 0; i < 5; i++) {
+    yield i;
+  }
+}
+
+var array = [for (x of [0, 1, 2, 3]) x];
+assertArrayEquals([0, 1, 2, 3], array);
+
+var array2 = [for (x of [0, 1, 2]) for (y of [0, 1, 2]) x + '' + y];
+assertArrayEquals(['00', '01', '02', '10', '11', '12', '20', '21', '22'],
+             array2);
+
+var array3 = [
+    for (x of [0, 1, 2, 3, 4])
+      for (y of range())
+        if (x === y)
+          x + '' + y];
+assertArrayEquals(['00', '11', '22', '33', '44'], array3);
+
+// Ensure this works as expression statement
+[for (testVar of []) testVar];
+
+var array4 = [
+  for (x of range())
+    if (x % 2 === 0)
+      for (y of range())
+        if (y % 2 === 1)
+          x + '' + y];
+assertArrayEquals(['01', '03', '21', '23', '41', '43'], array4);

test/fixtures/traceur/ArrayComprehension/ThisInComprehension.js

@@ -0,0 +1,14 @@
+// Options: --array-comprehension
+// https://github.com/google/traceur-compiler/issues/1086
+
+var object = {};
+
+function f() {
+  var a = [for (x of [1]) this];
+  var b = [for (x of [1]) this];
+  assert.deepEqual(a, [this]);
+  assert.deepEqual(a, [object]);
+  assert.deepEqual(a, b);
+}
+
+f.call(object);