add tests

Author: gfx

spec/array_spread1.ts

@@ -0,0 +1,2 @@
+const arr1 = [1, 2];
+export const array = [100, 200, ...arr1];

spec/array_spread.ts spec/array_spread2.tsspec/array_spread.ts renamed to spec/array_spread2.ts

@@ -0,0 +1,4 @@
+const arr1 = [1, 2];
+const arr2 = [3, 4];
+const arr3 = [5, 6];
+export const array = [...arr1, ...arr2, ...arr3];