fix: add computed property support for object Ref (#10863)

* fix: add computed property support for object Ref

* Apply suggestions from code review

Co-Authored-By: Nicolò Ribaudo <nicolo.ribaudo@gmail.com>

* Update output.js

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/object-ref-computed-exec/exec.js

@@ -0,0 +1,20 @@
+var key, x, y, z;
+// impure
+key = 1;
+var { [key++]: { y, ...x } } = { 1: { a: 1, y: 1 } };
+expect(x).toEqual({ a: 1 });
+expect(key).toBe(2);
+expect(y).toBe(1);
+
+// takes care of the order
+
+key = 1;
+var {
+  [++key]: { y, ...rest_y },
+  [++key]: { z, ...rest_z }
+} = {2: { y: 2, z: 3 }, 3: { y: 2, z: 3 } };
+expect(y).toBe(2);
+expect(rest_y).toEqual({z: 3});
+expect(z).toBe(3);
+expect(rest_z).toEqual({ y: 2 });
+expect(key).toBe(3);

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/object-ref-computed/input.js

@@ -0,0 +1,20 @@
+var key, x, y, z;
+// impure
+key = 1;
+var { [key++]: { y, ...x } } = { 1: { a: 1, y: 1 } };
+expect(x).toEqual({ a: 1 });
+expect(key).toBe(2);
+expect(y).toBe(1);
+
+// takes care of the order
+
+key = 1;
+var {
+  [++key]: { y, ...rest_y },
+  [++key]: { z, ...rest_z }
+} = {2: { y: 2, z: 3 }, 3: { y: 2, z: 3 } };
+expect(y).toBe(2);
+expect(rest_y).toEqual({z: 3});
+expect(z).toBe(3);
+expect(rest_z).toEqual({ y: 2 });
+expect(key).toBe(3);

packages/babel-plugin-proposal-object-rest-spread/test/fixtures/object-rest/object-ref-computed/output.js

@@ -0,0 +1,62 @@
+var key, x, y, z; // impure
+
+key = 1;
+
+var _ref = key++,
+    {
+  [_ref]: {
+    y
+  }
+} = {
+  1: {
+    a: 1,
+    y: 1
+  }
+},
+    x = babelHelpers.objectWithoutProperties({
+  1: {
+    a: 1,
+    y: 1
+  }
+}[_ref], ["y"]);
+
+expect(x).toEqual({
+  a: 1
+});
+expect(key).toBe(2);
+expect(y).toBe(1); // takes care of the order
+
+key = 1;
+
+var _$ = {
+  2: {
+    y: 2,
+    z: 3
+  },
+  3: {
+    y: 2,
+    z: 3
+  }
+},
+    _ref2 = ++key,
+    _ref3 = ++key,
+    {
+  [_ref3]: {
+    y
+  },
+  [_ref2]: {
+    z
+  }
+} = _$,
+    rest_y = babelHelpers.objectWithoutProperties(_$[_ref3], ["y"]),
+    rest_z = babelHelpers.objectWithoutProperties(_$[_ref2], ["z"]);
+
+expect(y).toBe(2);
+expect(rest_y).toEqual({
+  z: 3
+});
+expect(z).toBe(3);
+expect(rest_z).toEqual({
+  y: 2
+});
+expect(key).toBe(3);