Add tests

source/compiler/tests/gh_668.meta

@@ -0,0 +1,7 @@
+{
+  'test_type': 'output_check',
+  'errors': """
+gh_668.pwn(1) : error 009: invalid array size (negative, zero or out of bounds)
+gh_668.pwn(5) : error 009: invalid array size (negative, zero or out of bounds)
+  """
+}

source/compiler/tests/gh_668.pwn

@@ -0,0 +1,7 @@
+new global_array[0] = { 0 }; // error 009
+
+main()
+{
+	new local_array[0] = { 0 }; // error 009
+	return global_array[0] + local_array[0];
+}