diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/exec.js b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/exec.js
index 4a74739479ba..55c2b9bad62f 100644
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/exec.js
+++ b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/exec.js
@@ -24,6 +24,7 @@ expect(() => {
   var [] = { [Symbol.iterator]: async function*() {} };
 }).not.toThrow();
 
+// iterator.return should be called
 var returnCalled = false;
 var [] = {
   [Symbol.iterator]: () => {
@@ -36,3 +37,13 @@ var [] = {
   },
 };
 expect(returnCalled).toStrictEqual(true);
+
+// #15154
+expect(() => {
+  var [] = { [Symbol.iterator]: () => [] };
+}).not.toThrow();
+
+// #15168
+expect(() => {
+  var [] = { [Symbol.iterator]: () => async function* () {} };
+}).not.toThrow();
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/input.js b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/input.js
index 064f8902399d..74c70fd8373f 100644
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/input.js
+++ b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/input.js
@@ -11,6 +11,7 @@ var [] = { [Symbol.iterator]: () => ({}) };
 var [] = { [Symbol.iterator]: () => () => {} };
 var [] = { [Symbol.iterator]: async function*() {} };
 
+// iterator.return should be called
 var returnCalled = false;
 var [] = {
   [Symbol.iterator]: () => {
@@ -22,3 +23,9 @@ var [] = {
     };
   },
 };
+
+// #15154
+var [] = { [Symbol.iterator]: () => [] };
+
+// #15168
+var [] = { [Symbol.iterator]: () => async function* () {} };
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/output.js b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/output.js
index a5f12c42ff7a..9f8606f40f82 100644
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/output.js
+++ b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/empty-array-pattern/output.js
@@ -47,6 +47,8 @@ var _Symbol$iterator7 = {
     })
   },
   _Symbol$iterator8 = babelHelpers.slicedToArray(_Symbol$iterator7, 0);
+
+// iterator.return should be called
 var returnCalled = false;
 var _Symbol$iterator9 = {
     [Symbol.iterator]: () => {
@@ -59,3 +61,25 @@ var _Symbol$iterator9 = {
     }
   },
   _Symbol$iterator10 = babelHelpers.slicedToArray(_Symbol$iterator9, 0);
+
+// #15154
+var _Symbol$iterator11 = {
+    [Symbol.iterator]: () => []
+  },
+  _Symbol$iterator12 = babelHelpers.slicedToArray(_Symbol$iterator11, 0);
+
+// #15168
+var _Symbol$iterator13 = {
+    [Symbol.iterator]: () => /*#__PURE__*/babelHelpers.regeneratorRuntime().mark(function _callee3() {
+      return babelHelpers.regeneratorRuntime().async(function _callee3$(_context3) {
+        while (1) {
+          switch (_context3.prev = _context3.next) {
+            case 0:
+            case "end":
+              return _context3.stop();
+          }
+        }
+      }, _callee3, null, null, Promise);
+    })
+  },
+  _Symbol$iterator14 = babelHelpers.slicedToArray(_Symbol$iterator13, 0);
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/exec.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/exec.js
deleted file mode 100644
index 200fe886738f..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/exec.js
+++ /dev/null
@@ -1,3 +0,0 @@
-expect(() => {
-  var [] = { [Symbol.iterator]: () => [] };
-}).not.toThrow();
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/input.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/input.js
deleted file mode 100644
index fa976372b57a..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/input.js
+++ /dev/null
@@ -1 +0,0 @@
-var [] = { [Symbol.iterator]: () => [] };
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/options.json b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/options.json
deleted file mode 100644
index 84e28c07f51e..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/options.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "plugins": ["transform-destructuring"]
-}
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/output.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/output.js
deleted file mode 100644
index 678e2655ef49..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15154/output.js
+++ /dev/null
@@ -1,4 +0,0 @@
-var _Symbol$iterator = {
-    [Symbol.iterator]: () => []
-  },
-  _Symbol$iterator2 = babelHelpers.slicedToArray(_Symbol$iterator, 0);
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/exec.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/exec.js
deleted file mode 100644
index d1a3ff74de70..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/exec.js
+++ /dev/null
@@ -1,3 +0,0 @@
-expect(() => {
-  var [] = { [Symbol.iterator]: () => async function* () {} };
-}).not.toThrow();
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/input.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/input.js
deleted file mode 100644
index e7edfef99ff4..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/input.js
+++ /dev/null
@@ -1 +0,0 @@
-var [] = { [Symbol.iterator]: () => async function* () {} };
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/output.js b/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/output.js
deleted file mode 100644
index cf218b07135d..000000000000
--- a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/output.js
+++ /dev/null
@@ -1,12 +0,0 @@
-var _Symbol$iterator = {
-    [Symbol.iterator]: () => /*#__PURE__*/babelHelpers.regeneratorRuntime().mark(function _callee() {
-      return babelHelpers.regeneratorRuntime().async(function _callee$(_context) {
-        while (1) switch (_context.prev = _context.next) {
-          case 0:
-          case "end":
-            return _context.stop();
-        }
-      }, _callee, null, null, Promise);
-    })
-  },
-  _Symbol$iterator2 = babelHelpers.slicedToArray(_Symbol$iterator, 0);
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/exec.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/exec.js
similarity index 94%
rename from packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/exec.js
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/exec.js
index 2535a6cd0a68..230e9f1b8cc3 100644
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/exec.js
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/exec.js
@@ -1,3 +1,4 @@
+// #15177
 expect(() => {
   var [x] = {
     [Symbol.iterator]: function* () {
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/input.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/input.js
similarity index 91%
rename from packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/input.js
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/input.js
index 70028b8953fc..bd0c6cf6ad67 100644
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/input.js
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/input.js
@@ -1,3 +1,4 @@
+// #15177
 var [x] = {
   [Symbol.iterator]: function* () {
     yield* {
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/options.json b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/options.json
similarity index 100%
rename from packages/babel-plugin-transform-destructuring/test/fixtures/regression/15168/options.json
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/options.json
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/output.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/output.js
new file mode 100644
index 000000000000..88b5892c6386
--- /dev/null
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/delegated-yield-invalid-iterator/output.js
@@ -0,0 +1,18 @@
+// #15177
+var _Symbol$iterator = {
+    [Symbol.iterator]: /*#__PURE__*/babelHelpers.regeneratorRuntime().mark(function _callee() {
+      return babelHelpers.regeneratorRuntime().wrap(function _callee$(_context) {
+        while (1) switch (_context.prev = _context.next) {
+          case 0:
+            return _context.delegateYield({
+              [Symbol.iterator]: x => []
+            }, "t0", 1);
+          case 1:
+          case "end":
+            return _context.stop();
+        }
+      }, _callee);
+    })
+  },
+  _Symbol$iterator2 = babelHelpers.slicedToArray(_Symbol$iterator, 1),
+  x = _Symbol$iterator2[0];
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/exec.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/exec.js
similarity index 90%
rename from packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/exec.js
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/exec.js
index f234bede5ee4..ed5dffa2880b 100644
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/exec.js
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/exec.js
@@ -1,3 +1,4 @@
+// #15142
 var f = async () => [await 0, , ];
 f().then(result => {
   expect(result).toStrictEqual([0, , ]);
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/input.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/input.js
similarity index 72%
rename from packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/input.js
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/input.js
index 558fda0ce767..c7c2139c8a5b 100644
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/input.js
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/input.js
@@ -1 +1,2 @@
+// #15142
 async () => [await 0, , ];
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/options.json b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/options.json
similarity index 100%
rename from packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/options.json
rename to packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/options.json
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/output.js b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/output.js
new file mode 100644
index 000000000000..8680b0749f82
--- /dev/null
+++ b/packages/babel-plugin-transform-regenerator/test/fixtures/misc/yield-sparse-array/output.js
@@ -0,0 +1,16 @@
+// #15142
+() => {
+  return babelHelpers.regeneratorRuntime().async(function _callee$(_context) {
+    while (1) switch (_context.prev = _context.next) {
+      case 0:
+        _context.next = 2;
+        return babelHelpers.regeneratorRuntime().awrap(0);
+      case 2:
+        _context.t0 = _context.sent;
+        return _context.abrupt("return", [_context.t0,,]);
+      case 4:
+      case "end":
+        return _context.stop();
+    }
+  }, null, null, null, Promise);
+};
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/output.js b/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/output.js
deleted file mode 100644
index 25a96137b48a..000000000000
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15142/output.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/*#__PURE__*/babelHelpers.asyncToGenerator( /*#__PURE__*/babelHelpers.regeneratorRuntime().mark(function _callee() {
-  return babelHelpers.regeneratorRuntime().wrap(function _callee$(_context) {
-    while (1) {
-      switch (_context.prev = _context.next) {
-        case 0:
-          _context.next = 2;
-          return 0;
-        case 2:
-          _context.t0 = _context.sent;
-          return _context.abrupt("return", [_context.t0,,]);
-        case 4:
-        case "end":
-          return _context.stop();
-      }
-    }
-  }, _callee);
-}));
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/options.json b/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/options.json
deleted file mode 100644
index bcd3c208a8bc..000000000000
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/options.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "plugins": [
-    "transform-destructuring",
-    "transform-regenerator"
-  ]
-}
diff --git a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/output.js b/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/output.js
deleted file mode 100644
index 3795f7d39f8c..000000000000
--- a/packages/babel-plugin-transform-regenerator/test/fixtures/regression/15177/output.js
+++ /dev/null
@@ -1,17 +0,0 @@
-var _Symbol$iterator = babelHelpers.defineProperty({}, Symbol.iterator, /*#__PURE__*/babelHelpers.regeneratorRuntime().mark(function _callee() {
-    return babelHelpers.regeneratorRuntime().wrap(function _callee$(_context) {
-      while (1) {
-        switch (_context.prev = _context.next) {
-          case 0:
-            return _context.delegateYield(babelHelpers.defineProperty({}, Symbol.iterator, function (x) {
-              return [];
-            }), "t0", 1);
-          case 1:
-          case "end":
-            return _context.stop();
-        }
-      }
-    }, _callee);
-  })),
-  _Symbol$iterator2 = babelHelpers.slicedToArray(_Symbol$iterator, 1),
-  x = _Symbol$iterator2[0];