Add test for array aliases.

Author: wenLiangcan

test/programs/type-aliases-fixed-size-array/main.ts

@@ -0,0 +1 @@
+type MyFixedSizeArray = [string, number];

test/programs/type-aliases-fixed-size-array/schema.json

@@ -0,0 +1,10 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "array",
+    "items": [
+        {"type": "string"},
+        {"type": "number"}
+    ],
+    "minItems": 2,
+    "maxItems": 2
+}

test/programs/type-aliases/main.ts

@@ -0,0 +1 @@
+type MyString = string;

test/programs/type-aliases/schema.json

@@ -0,0 +1,4 @@
+{
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "type": "string"
+}