add test for multiple declaration

vm_suite.ce

@@ -3995,6 +3995,37 @@ run("shorthand property with null", function() {
   assert_eq(obj.x, null, "null shorthand")
 })
 
+run("shorthand property many", function() {
+  var a = 1
+  var b = 2
+  var c = 3
+  var d = 4
+  var e = 5
+  var f = 6
+  var g = 7
+  var h = 8
+  var i = 9
+  var j = 10
+  var obj = {a, b, c, d, e, f, g, h, i, j}
+  assert_eq(obj.a, 1, "a")
+  assert_eq(obj.e, 5, "e")
+  assert_eq(obj.j, 10, "j")
+})
+
+run("shorthand property with method", function() {
+  var z = 300
+  var obj = {z, double(n) { return n * 2 }}
+  assert_eq(obj.z, 300, "shorthand z")
+  assert_eq(obj.double(5), 10, "method double")
+})
+
+run("shorthand property is a snapshot", function() {
+  var val = "original"
+  var obj = {val}
+  val = "changed"
+  assert_eq(obj.val, "original", "object keeps original")
+})
+
 // ============================================================================
 // SHARED CLOSURES
 // ============================================================================
@@ -4149,6 +4180,23 @@ run("template literal nested calls", function() {
   assert_eq(`result: ${double(5)}`, "result: 10", "fn call in template")
 })
 
+// ============================================================================
+// COMMA-SEPARATED DECLARATIONS
+// ============================================================================
+
+run("comma separated var declarations", function() {
+  var a = 1, b = 2, c = 3
+  assert_eq(a, 1, "first")
+  assert_eq(b, 2, "second")
+  assert_eq(c, 3, "third")
+})
+
+run("comma separated def declarations", function() {
+  def x = 10, y = 20
+  assert_eq(x, 10, "def first")
+  assert_eq(y, 20, "def second")
+})
+
 // ============================================================================
 // DEF CONSTANTS
 // ============================================================================