Add generated function_type tests.

tests/language/function_type/function_type37_test.dart

Index: tests/language/function_type/function_type37_test.dart
diff --git a/tests/language/function_type/function_type37_test.dart b/tests/language/function_type/function_type37_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..7eae60caf6d8297995d4e4a79f3ad74ea8d01367
--- /dev/null
+++ b/tests/language/function_type/function_type37_test.dart
@@ -0,0 +1,849 @@
+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+// GENERATED - DON'T EDIT.
+
+import 'dart:core';
+import 'dart:core' as core;
+import 'package:expect/expect.dart';
+
+@NoInline()
+@AssumeDynamic()
+confuse(f) => f;
+
+final bool inCheckedMode =
+    (() { bool result = false; assert(result = true); return result; })();
+
+
+typedef F0<T> = int Function(core.List<core.int> x0);
+typedef F1<T> = List<Function> Function(int y, [List<Function> x]);
+typedef F2<T> = List<T> Function(int x0, [Function x]);
+typedef F3<T> = void Function([int x]);
+typedef F4<T> = Function<A>();
+typedef F5<T> = int Function(int x, [Function x1]) Function(int x);
+typedef F6<T> = int Function(int y, {core.List<core.int> x}) Function(int x);
+typedef F7<T> = Function Function([Function x]) Function(int x);
+typedef F8<T> = Function Function(core.List<core.int> x1) Function(int x);
+typedef F9<T> = List<Function> Function(int x2, [int x3]) Function(int x);
+typedef F10<T> = List<Function> Function(int x1, {List<Function> x}) Function(int x);
+typedef F11<T> = core.List<core.int> Function(int x) Function(int x);
+typedef F12<T> = core.List<core.int> Function(int y, [List<Function> x]) Function(int x);
+typedef F13<T> = core.List<core.int> Function(int x2, [List<T> x3]) Function(int x);
+typedef F14<T> = List<T> Function({Function x}) Function(int x);
+typedef F15<T> = List<T> Function(List<T> x) Function(int x);
+typedef F16<T> = Function(int x1, [Function x]) Function(int x);
+typedef F17<T> = Function([core.List<core.int> x1]) Function(int x);
+typedef F18<T> = void Function(int x, [int x1]) Function(int x);
+typedef F19<T> = void Function(int y, {List<Function> x}) Function(int x);
+typedef F20<T> = int Function<A>(Function x) Function(int x);
+typedef F21<T> = core.List<core.int> Function<A>(List<Function> x) Function(int x);
+typedef F22<T> = A Function<A>(core.List<core.int> x) Function(int x);
+typedef F23<T> = void Function(B x) Function<B extends core.int>(int x);
+
+
+int f0(core.List<core.int> x0) => null;
+List<Function> f1(int y, [List<Function> x]) => null;
+List<int> f2(int x0, [Function x]) => null;
+void f3([int x]) => null;
+f4<A>() => null;
+int Function(int x, [Function x0]) f5(int x) => null;
+int Function(int y, {core.List<core.int> x}) f6(int x) => null;
+Function Function([Function x]) f7(int x) => null;
+Function Function(core.List<core.int> x0) f8(int x) => null;
+List<Function> Function(int x0, [int x1]) f9(int x) => null;
+List<Function> Function(int x0, {List<Function> x}) f10(int x) => null;
+core.List<core.int> Function(int x) f11(int x) => null;
+core.List<core.int> Function(int y, [List<Function> x]) f12(int x) => null;
+core.List<core.int> Function(int x0, [List<int> x1]) f13(int x) => null;
+List<int> Function({Function x}) f14(int x) => null;
+List<int> Function(List<int> x) f15(int x) => null;
+Function(int x0, [Function x]) f16(int x) => null;
+Function([core.List<core.int> x0]) f17(int x) => null;
+void Function(int x, [int x0]) f18(int x) => null;
+void Function(int y, {List<Function> x}) f19(int x) => null;
+int Function<A>(Function x) f20(int x) => null;
+core.List<core.int> Function<A>(List<Function> x) f21(int x) => null;
+A Function<A>(core.List<core.int> x) f22(int x) => null;
+void Function(B x) f23<B extends core.int>(int x) => null;
+
+
+class U37<T> {
+  final bool tIsBool;
+  final bool tIsInt;
+  final bool tIsDynamic;
+
+  int Function(core.List<core.int> x0) x0;
+  List<Function> Function(int y, [List<Function> x]) x1;
+  List<T> Function(int x0, [Function x]) x2;
+  void Function([int x]) x3;
+  Function<A>() x4;
+  int Function(int x, [Function x1]) Function(int x) x5;
+  int Function(int y, {core.List<core.int> x}) Function(int x) x6;
+  Function Function([Function x]) Function(int x) x7;
+  Function Function(core.List<core.int> x1) Function(int x) x8;
+  List<Function> Function(int x2, [int x3]) Function(int x) x9;
+  List<Function> Function(int x1, {List<Function> x}) Function(int x) x10;
+  core.List<core.int> Function(int x) Function(int x) x11;
+  core.List<core.int> Function(int y, [List<Function> x]) Function(int x) x12;
+  core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) x13;
+  List<T> Function({Function x}) Function(int x) x14;
+  List<T> Function(List<T> x) Function(int x) x15;
+  Function(int x1, [Function x]) Function(int x) x16;
+  Function([core.List<core.int> x1]) Function(int x) x17;
+  void Function(int x, [int x1]) Function(int x) x18;
+  void Function(int y, {List<Function> x}) Function(int x) x19;
+  int Function<A>(Function x) Function(int x) x20;
+  core.List<core.int> Function<A>(List<Function> x) Function(int x) x21;
+  A Function<A>(core.List<core.int> x) Function(int x) x22;
+  void Function(B x) Function<B extends core.int>(int x) x23;
+
+
+  U37({this.tIsBool: false, this.tIsInt: false})
+      : tIsDynamic = !tIsBool && !tIsInt;
+
+  int m0(core.List<core.int> x0) => null;
+  List<Function> m1(int y, [List<Function> x]) => null;
+  List<T> m2(int x0, [Function x]) => null;
+  void m3([int x]) => null;
+  m4<A>() => null;
+  int Function(int x, [Function x0]) m5(int x) => null;
+  int Function(int y, {core.List<core.int> x}) m6(int x) => null;
+  Function Function([Function x]) m7(int x) => null;
+  Function Function(core.List<core.int> x0) m8(int x) => null;
+  List<Function> Function(int x0, [int x1]) m9(int x) => null;
+  List<Function> Function(int x0, {List<Function> x}) m10(int x) => null;
+  core.List<core.int> Function(int x) m11(int x) => null;
+  core.List<core.int> Function(int y, [List<Function> x]) m12(int x) => null;
+  core.List<core.int> Function(int x0, [List<T> x1]) m13(int x) => null;
+  List<T> Function({Function x}) m14(int x) => null;
+  List<T> Function(List<T> x) m15(int x) => null;
+  Function(int x0, [Function x]) m16(int x) => null;
+  Function([core.List<core.int> x0]) m17(int x) => null;
+  void Function(int x, [int x0]) m18(int x) => null;
+  void Function(int y, {List<Function> x}) m19(int x) => null;
+  int Function<A>(Function x) m20(int x) => null;
+  core.List<core.int> Function<A>(List<Function> x) m21(int x) => null;
+  A Function<A>(core.List<core.int> x) m22(int x) => null;
+  void Function(B x) m23<B extends core.int>(int x) => null;
+
+
+  runTests() {
+    testF0();
+    testF1();
+    testF2();
+    testF3();
+    testF4();
+    testF5();
+    testF6();
+    testF7();
+    testF8();
+    testF9();
+    testF10();
+    testF11();
+    testF12();
+    testF13();
+    testF14();
+    testF15();
+    testF16();
+    testF17();
+    testF18();
+    testF19();
+    testF20();
+    testF21();
+    testF22();
+    testF23();
+  }
+
+  /// int Function(core.List<core.int> x0)
+  void testF0() {
+    Expect.isTrue(f0 is F0);
+    Expect.isTrue(confuse(f0) is F0);
+    // In checked mode, verifies the type.
+    int Function(core.List<core.int> x0) l0;
+    // The static function f0 sets `T` to `int`.
+    if (!tIsBool) {
+      x0 = f0 as dynamic;
+      l0 = f0 as dynamic;
+      x0 = confuse(f0);
+      l0 = confuse(f0);
+    }
+
+    Expect.isTrue(m0 is F0);
+    Expect.isTrue(m0 is int Function(core.List<core.int> x0));
+    Expect.isTrue(confuse(m0) is F0);
+    // In checked mode, verifies the type.
+    x0 = m0;
+    l0 = m0;
+    x0 = confuse(m0);
+    l0 = confuse(m0);
+
+  }
+
+  /// List<Function> Function(int y, [List<Function> x])
+  void testF1() {
+    Expect.isTrue(f1 is F1);
+    Expect.isTrue(confuse(f1) is F1);
+    // In checked mode, verifies the type.
+    List<Function> Function(int y, [List<Function> x]) l1;
+    // The static function f1 sets `T` to `int`.
+    if (!tIsBool) {
+      x1 = f1 as dynamic;
+      l1 = f1 as dynamic;
+      x1 = confuse(f1);
+      l1 = confuse(f1);
+    }
+
+    Expect.isTrue(m1 is F1);
+    Expect.isTrue(m1 is List<Function> Function(int y, [List<Function> x]));
+    Expect.isTrue(confuse(m1) is F1);
+    // In checked mode, verifies the type.
+    x1 = m1;
+    l1 = m1;
+    x1 = confuse(m1);
+    l1 = confuse(m1);
+
+  }
+
+  /// List<T> Function(int x0, [Function x])
+  void testF2() {
+    Expect.isTrue(f2 is F2);
+    Expect.isTrue(confuse(f2) is F2);
+    // In checked mode, verifies the type.
+    List<T> Function(int x0, [Function x]) l2;
+    // The static function f2 sets `T` to `int`.
+    if (!tIsBool) {
+      x2 = f2 as dynamic;
+      l2 = f2 as dynamic;
+      x2 = confuse(f2);
+      l2 = confuse(f2);
+    }
+
+    Expect.isTrue(m2 is F2);
+    Expect.isTrue(m2 is List<T> Function(int x0, [Function x]));
+    Expect.isTrue(confuse(m2) is F2);
+    // In checked mode, verifies the type.
+    x2 = m2;
+    l2 = m2;
+    x2 = confuse(m2);
+    l2 = confuse(m2);
+    if (!tIsBool) {
+      Expect.isTrue(f2 is F2<int>);
+      Expect.isFalse(f2 is F2<bool>);
+      Expect.isTrue(confuse(f2) is F2<int>);
+      Expect.isFalse(confuse(f2) is F2<bool>);
+      Expect.equals(tIsDynamic, m2 is F2<bool>);
+      Expect.equals(tIsDynamic, confuse(m2) is F2<bool>);
+    } else {
+      if (inCheckedMode) {
+        Expect.throws(() { x2 = (f2 as dynamic); });
+        Expect.throws(() { x2 = confuse(f2); });
+        List<T> Function(int x0, [Function x]) l2;
+        Expect.throws(() { l2 = (f2 as dynamic); });
+        Expect.throws(() { l2 = confuse(f2); });
+      }
+      List<T> Function(int x0, [Function x]) l2 = m2;
+      // In checked mode, verifies the type.
+      x2 = m2;
+      x2 = confuse(m2);
+    }
+  }
+
+  /// void Function([int x])
+  void testF3() {
+    Expect.isTrue(f3 is F3);
+    Expect.isTrue(confuse(f3) is F3);
+    // In checked mode, verifies the type.
+    void Function([int x]) l3;
+    // The static function f3 sets `T` to `int`.
+    if (!tIsBool) {
+      x3 = f3 as dynamic;
+      l3 = f3 as dynamic;
+      x3 = confuse(f3);
+      l3 = confuse(f3);
+    }
+
+    Expect.isTrue(m3 is F3);
+    Expect.isTrue(m3 is void Function([int x]));
+    Expect.isTrue(confuse(m3) is F3);
+    // In checked mode, verifies the type.
+    x3 = m3;
+    l3 = m3;
+    x3 = confuse(m3);
+    l3 = confuse(m3);
+
+  }
+
+  /// Function<A>()
+  void testF4() {
+    Expect.isTrue(f4 is F4);
+    Expect.isTrue(confuse(f4) is F4);
+    // In checked mode, verifies the type.
+    Function<A>() l4;
+    // The static function f4 sets `T` to `int`.
+    if (!tIsBool) {
+      x4 = f4 as dynamic;
+      l4 = f4 as dynamic;
+      x4 = confuse(f4);
+      l4 = confuse(f4);
+    }
+
+    Expect.isTrue(m4 is F4);
+    Expect.isTrue(m4 is Function<A>());
+    Expect.isTrue(confuse(m4) is F4);
+    // In checked mode, verifies the type.
+    x4 = m4;
+    l4 = m4;
+    x4 = confuse(m4);
+    l4 = confuse(m4);
+
+  }
+
+  /// int Function(int x, [Function x1]) Function(int x)
+  void testF5() {
+    Expect.isTrue(f5 is F5);
+    Expect.isTrue(confuse(f5) is F5);
+    // In checked mode, verifies the type.
+    int Function(int x, [Function x1]) Function(int x) l5;
+    // The static function f5 sets `T` to `int`.
+    if (!tIsBool) {
+      x5 = f5 as dynamic;
+      l5 = f5 as dynamic;
+      x5 = confuse(f5);
+      l5 = confuse(f5);
+    }
+
+    Expect.isTrue(m5 is F5);
+    Expect.isTrue(m5 is int Function(int x, [Function x1]) Function(int x));
+    Expect.isTrue(confuse(m5) is F5);
+    // In checked mode, verifies the type.
+    x5 = m5;
+    l5 = m5;
+    x5 = confuse(m5);
+    l5 = confuse(m5);
+
+  }
+
+  /// int Function(int y, {core.List<core.int> x}) Function(int x)
+  void testF6() {
+    Expect.isTrue(f6 is F6);
+    Expect.isTrue(confuse(f6) is F6);
+    // In checked mode, verifies the type.
+    int Function(int y, {core.List<core.int> x}) Function(int x) l6;
+    // The static function f6 sets `T` to `int`.
+    if (!tIsBool) {
+      x6 = f6 as dynamic;
+      l6 = f6 as dynamic;
+      x6 = confuse(f6);
+      l6 = confuse(f6);
+    }
+
+    Expect.isTrue(m6 is F6);
+    Expect.isTrue(m6 is int Function(int y, {core.List<core.int> x}) Function(int x));
+    Expect.isTrue(confuse(m6) is F6);
+    // In checked mode, verifies the type.
+    x6 = m6;
+    l6 = m6;
+    x6 = confuse(m6);
+    l6 = confuse(m6);
+
+  }
+
+  /// Function Function([Function x]) Function(int x)
+  void testF7() {
+    Expect.isTrue(f7 is F7);
+    Expect.isTrue(confuse(f7) is F7);
+    // In checked mode, verifies the type.
+    Function Function([Function x]) Function(int x) l7;
+    // The static function f7 sets `T` to `int`.
+    if (!tIsBool) {
+      x7 = f7 as dynamic;
+      l7 = f7 as dynamic;
+      x7 = confuse(f7);
+      l7 = confuse(f7);
+    }
+
+    Expect.isTrue(m7 is F7);
+    Expect.isTrue(m7 is Function Function([Function x]) Function(int x));
+    Expect.isTrue(confuse(m7) is F7);
+    // In checked mode, verifies the type.
+    x7 = m7;
+    l7 = m7;
+    x7 = confuse(m7);
+    l7 = confuse(m7);
+
+  }
+
+  /// Function Function(core.List<core.int> x1) Function(int x)
+  void testF8() {
+    Expect.isTrue(f8 is F8);
+    Expect.isTrue(confuse(f8) is F8);
+    // In checked mode, verifies the type.
+    Function Function(core.List<core.int> x1) Function(int x) l8;
+    // The static function f8 sets `T` to `int`.
+    if (!tIsBool) {
+      x8 = f8 as dynamic;
+      l8 = f8 as dynamic;
+      x8 = confuse(f8);
+      l8 = confuse(f8);
+    }
+
+    Expect.isTrue(m8 is F8);
+    Expect.isTrue(m8 is Function Function(core.List<core.int> x1) Function(int x));
+    Expect.isTrue(confuse(m8) is F8);
+    // In checked mode, verifies the type.
+    x8 = m8;
+    l8 = m8;
+    x8 = confuse(m8);
+    l8 = confuse(m8);
+
+  }
+
+  /// List<Function> Function(int x2, [int x3]) Function(int x)
+  void testF9() {
+    Expect.isTrue(f9 is F9);
+    Expect.isTrue(confuse(f9) is F9);
+    // In checked mode, verifies the type.
+    List<Function> Function(int x2, [int x3]) Function(int x) l9;
+    // The static function f9 sets `T` to `int`.
+    if (!tIsBool) {
+      x9 = f9 as dynamic;
+      l9 = f9 as dynamic;
+      x9 = confuse(f9);
+      l9 = confuse(f9);
+    }
+
+    Expect.isTrue(m9 is F9);
+    Expect.isTrue(m9 is List<Function> Function(int x2, [int x3]) Function(int x));
+    Expect.isTrue(confuse(m9) is F9);
+    // In checked mode, verifies the type.
+    x9 = m9;
+    l9 = m9;
+    x9 = confuse(m9);
+    l9 = confuse(m9);
+
+  }
+
+  /// List<Function> Function(int x1, {List<Function> x}) Function(int x)
+  void testF10() {
+    Expect.isTrue(f10 is F10);
+    Expect.isTrue(confuse(f10) is F10);
+    // In checked mode, verifies the type.
+    List<Function> Function(int x1, {List<Function> x}) Function(int x) l10;
+    // The static function f10 sets `T` to `int`.
+    if (!tIsBool) {
+      x10 = f10 as dynamic;
+      l10 = f10 as dynamic;
+      x10 = confuse(f10);
+      l10 = confuse(f10);
+    }
+
+    Expect.isTrue(m10 is F10);
+    Expect.isTrue(m10 is List<Function> Function(int x1, {List<Function> x}) Function(int x));
+    Expect.isTrue(confuse(m10) is F10);
+    // In checked mode, verifies the type.
+    x10 = m10;
+    l10 = m10;
+    x10 = confuse(m10);
+    l10 = confuse(m10);
+
+  }
+
+  /// core.List<core.int> Function(int x) Function(int x)
+  void testF11() {
+    Expect.isTrue(f11 is F11);
+    Expect.isTrue(confuse(f11) is F11);
+    // In checked mode, verifies the type.
+    core.List<core.int> Function(int x) Function(int x) l11;
+    // The static function f11 sets `T` to `int`.
+    if (!tIsBool) {
+      x11 = f11 as dynamic;
+      l11 = f11 as dynamic;
+      x11 = confuse(f11);
+      l11 = confuse(f11);
+    }
+
+    Expect.isTrue(m11 is F11);
+    Expect.isTrue(m11 is core.List<core.int> Function(int x) Function(int x));
+    Expect.isTrue(confuse(m11) is F11);
+    // In checked mode, verifies the type.
+    x11 = m11;
+    l11 = m11;
+    x11 = confuse(m11);
+    l11 = confuse(m11);
+
+  }
+
+  /// core.List<core.int> Function(int y, [List<Function> x]) Function(int x)
+  void testF12() {
+    Expect.isTrue(f12 is F12);
+    Expect.isTrue(confuse(f12) is F12);
+    // In checked mode, verifies the type.
+    core.List<core.int> Function(int y, [List<Function> x]) Function(int x) l12;
+    // The static function f12 sets `T` to `int`.
+    if (!tIsBool) {
+      x12 = f12 as dynamic;
+      l12 = f12 as dynamic;
+      x12 = confuse(f12);
+      l12 = confuse(f12);
+    }
+
+    Expect.isTrue(m12 is F12);
+    Expect.isTrue(m12 is core.List<core.int> Function(int y, [List<Function> x]) Function(int x));
+    Expect.isTrue(confuse(m12) is F12);
+    // In checked mode, verifies the type.
+    x12 = m12;
+    l12 = m12;
+    x12 = confuse(m12);
+    l12 = confuse(m12);
+
+  }
+
+  /// core.List<core.int> Function(int x2, [List<T> x3]) Function(int x)
+  void testF13() {
+    Expect.isTrue(f13 is F13);
+    Expect.isTrue(confuse(f13) is F13);
+    // In checked mode, verifies the type.
+    core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) l13;
+    // The static function f13 sets `T` to `int`.
+    if (!tIsBool) {
+      x13 = f13 as dynamic;
+      l13 = f13 as dynamic;
+      x13 = confuse(f13);
+      l13 = confuse(f13);
+    }
+
+    Expect.isTrue(m13 is F13);
+    Expect.isTrue(m13 is core.List<core.int> Function(int x2, [List<T> x3]) Function(int x));
+    Expect.isTrue(confuse(m13) is F13);
+    // In checked mode, verifies the type.
+    x13 = m13;
+    l13 = m13;
+    x13 = confuse(m13);
+    l13 = confuse(m13);
+    if (!tIsBool) {
+      Expect.isTrue(f13 is F13<int>);
+      Expect.isFalse(f13 is F13<bool>);
+      Expect.isTrue(confuse(f13) is F13<int>);
+      Expect.isFalse(confuse(f13) is F13<bool>);
+      Expect.equals(tIsDynamic, m13 is F13<bool>);
+      Expect.equals(tIsDynamic, confuse(m13) is F13<bool>);
+    } else {
+      if (inCheckedMode) {
+        Expect.throws(() { x13 = (f13 as dynamic); });
+        Expect.throws(() { x13 = confuse(f13); });
+        core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) l13;
+        Expect.throws(() { l13 = (f13 as dynamic); });
+        Expect.throws(() { l13 = confuse(f13); });
+      }
+      core.List<core.int> Function(int x2, [List<T> x3]) Function(int x) l13 = m13;
+      // In checked mode, verifies the type.
+      x13 = m13;
+      x13 = confuse(m13);
+    }
+  }
+
+  /// List<T> Function({Function x}) Function(int x)
+  void testF14() {
+    Expect.isTrue(f14 is F14);
+    Expect.isTrue(confuse(f14) is F14);
+    // In checked mode, verifies the type.
+    List<T> Function({Function x}) Function(int x) l14;
+    // The static function f14 sets `T` to `int`.
+    if (!tIsBool) {
+      x14 = f14 as dynamic;
+      l14 = f14 as dynamic;
+      x14 = confuse(f14);
+      l14 = confuse(f14);
+    }
+
+    Expect.isTrue(m14 is F14);
+    Expect.isTrue(m14 is List<T> Function({Function x}) Function(int x));
+    Expect.isTrue(confuse(m14) is F14);
+    // In checked mode, verifies the type.
+    x14 = m14;
+    l14 = m14;
+    x14 = confuse(m14);
+    l14 = confuse(m14);
+    if (!tIsBool) {
+      Expect.isTrue(f14 is F14<int>);
+      Expect.isFalse(f14 is F14<bool>);
+      Expect.isTrue(confuse(f14) is F14<int>);
+      Expect.isFalse(confuse(f14) is F14<bool>);
+      Expect.equals(tIsDynamic, m14 is F14<bool>);
+      Expect.equals(tIsDynamic, confuse(m14) is F14<bool>);
+    } else {
+      if (inCheckedMode) {
+        Expect.throws(() { x14 = (f14 as dynamic); });
+        Expect.throws(() { x14 = confuse(f14); });
+        List<T> Function({Function x}) Function(int x) l14;
+        Expect.throws(() { l14 = (f14 as dynamic); });
+        Expect.throws(() { l14 = confuse(f14); });
+      }
+      List<T> Function({Function x}) Function(int x) l14 = m14;
+      // In checked mode, verifies the type.
+      x14 = m14;
+      x14 = confuse(m14);
+    }
+  }
+
+  /// List<T> Function(List<T> x) Function(int x)
+  void testF15() {
+    Expect.isTrue(f15 is F15);
+    Expect.isTrue(confuse(f15) is F15);
+    // In checked mode, verifies the type.
+    List<T> Function(List<T> x) Function(int x) l15;
+    // The static function f15 sets `T` to `int`.
+    if (!tIsBool) {
+      x15 = f15 as dynamic;
+      l15 = f15 as dynamic;
+      x15 = confuse(f15);
+      l15 = confuse(f15);
+    }
+
+    Expect.isTrue(m15 is F15);
+    Expect.isTrue(m15 is List<T> Function(List<T> x) Function(int x));
+    Expect.isTrue(confuse(m15) is F15);
+    // In checked mode, verifies the type.
+    x15 = m15;
+    l15 = m15;
+    x15 = confuse(m15);
+    l15 = confuse(m15);
+    if (!tIsBool) {
+      Expect.isTrue(f15 is F15<int>);
+      Expect.isFalse(f15 is F15<bool>);
+      Expect.isTrue(confuse(f15) is F15<int>);
+      Expect.isFalse(confuse(f15) is F15<bool>);
+      Expect.equals(tIsDynamic, m15 is F15<bool>);
+      Expect.equals(tIsDynamic, confuse(m15) is F15<bool>);
+    } else {
+      if (inCheckedMode) {
+        Expect.throws(() { x15 = (f15 as dynamic); });
+        Expect.throws(() { x15 = confuse(f15); });
+        List<T> Function(List<T> x) Function(int x) l15;
+        Expect.throws(() { l15 = (f15 as dynamic); });
+        Expect.throws(() { l15 = confuse(f15); });
+      }
+      List<T> Function(List<T> x) Function(int x) l15 = m15;
+      // In checked mode, verifies the type.
+      x15 = m15;
+      x15 = confuse(m15);
+    }
+  }
+
+  /// Function(int x1, [Function x]) Function(int x)
+  void testF16() {
+    Expect.isTrue(f16 is F16);
+    Expect.isTrue(confuse(f16) is F16);
+    // In checked mode, verifies the type.
+    Function(int x1, [Function x]) Function(int x) l16;
+    // The static function f16 sets `T` to `int`.
+    if (!tIsBool) {
+      x16 = f16 as dynamic;
+      l16 = f16 as dynamic;
+      x16 = confuse(f16);
+      l16 = confuse(f16);
+    }
+
+    Expect.isTrue(m16 is F16);
+    Expect.isTrue(m16 is Function(int x1, [Function x]) Function(int x));
+    Expect.isTrue(confuse(m16) is F16);
+    // In checked mode, verifies the type.
+    x16 = m16;
+    l16 = m16;
+    x16 = confuse(m16);
+    l16 = confuse(m16);
+
+  }
+
+  /// Function([core.List<core.int> x1]) Function(int x)
+  void testF17() {
+    Expect.isTrue(f17 is F17);
+    Expect.isTrue(confuse(f17) is F17);
+    // In checked mode, verifies the type.
+    Function([core.List<core.int> x1]) Function(int x) l17;
+    // The static function f17 sets `T` to `int`.
+    if (!tIsBool) {
+      x17 = f17 as dynamic;
+      l17 = f17 as dynamic;
+      x17 = confuse(f17);
+      l17 = confuse(f17);
+    }
+
+    Expect.isTrue(m17 is F17);
+    Expect.isTrue(m17 is Function([core.List<core.int> x1]) Function(int x));
+    Expect.isTrue(confuse(m17) is F17);
+    // In checked mode, verifies the type.
+    x17 = m17;
+    l17 = m17;
+    x17 = confuse(m17);
+    l17 = confuse(m17);
+
+  }
+
+  /// void Function(int x, [int x1]) Function(int x)
+  void testF18() {
+    Expect.isTrue(f18 is F18);
+    Expect.isTrue(confuse(f18) is F18);
+    // In checked mode, verifies the type.
+    void Function(int x, [int x1]) Function(int x) l18;
+    // The static function f18 sets `T` to `int`.
+    if (!tIsBool) {
+      x18 = f18 as dynamic;
+      l18 = f18 as dynamic;
+      x18 = confuse(f18);
+      l18 = confuse(f18);
+    }
+
+    Expect.isTrue(m18 is F18);
+    Expect.isTrue(m18 is void Function(int x, [int x1]) Function(int x));
+    Expect.isTrue(confuse(m18) is F18);
+    // In checked mode, verifies the type.
+    x18 = m18;
+    l18 = m18;
+    x18 = confuse(m18);
+    l18 = confuse(m18);
+
+  }
+
+  /// void Function(int y, {List<Function> x}) Function(int x)
+  void testF19() {
+    Expect.isTrue(f19 is F19);
+    Expect.isTrue(confuse(f19) is F19);
+    // In checked mode, verifies the type.
+    void Function(int y, {List<Function> x}) Function(int x) l19;
+    // The static function f19 sets `T` to `int`.
+    if (!tIsBool) {
+      x19 = f19 as dynamic;
+      l19 = f19 as dynamic;
+      x19 = confuse(f19);
+      l19 = confuse(f19);
+    }
+
+    Expect.isTrue(m19 is F19);
+    Expect.isTrue(m19 is void Function(int y, {List<Function> x}) Function(int x));
+    Expect.isTrue(confuse(m19) is F19);
+    // In checked mode, verifies the type.
+    x19 = m19;
+    l19 = m19;
+    x19 = confuse(m19);
+    l19 = confuse(m19);
+
+  }
+
+  /// int Function<A>(Function x) Function(int x)
+  void testF20() {
+    Expect.isTrue(f20 is F20);
+    Expect.isTrue(confuse(f20) is F20);
+    // In checked mode, verifies the type.
+    int Function<A>(Function x) Function(int x) l20;
+    // The static function f20 sets `T` to `int`.
+    if (!tIsBool) {
+      x20 = f20 as dynamic;
+      l20 = f20 as dynamic;
+      x20 = confuse(f20);
+      l20 = confuse(f20);
+    }
+
+    Expect.isTrue(m20 is F20);
+    Expect.isTrue(m20 is int Function<A>(Function x) Function(int x));
+    Expect.isTrue(confuse(m20) is F20);
+    // In checked mode, verifies the type.
+    x20 = m20;
+    l20 = m20;
+    x20 = confuse(m20);
+    l20 = confuse(m20);
+
+  }
+
+  /// core.List<core.int> Function<A>(List<Function> x) Function(int x)
+  void testF21() {
+    Expect.isTrue(f21 is F21);
+    Expect.isTrue(confuse(f21) is F21);
+    // In checked mode, verifies the type.
+    core.List<core.int> Function<A>(List<Function> x) Function(int x) l21;
+    // The static function f21 sets `T` to `int`.
+    if (!tIsBool) {
+      x21 = f21 as dynamic;
+      l21 = f21 as dynamic;
+      x21 = confuse(f21);
+      l21 = confuse(f21);
+    }
+
+    Expect.isTrue(m21 is F21);
+    Expect.isTrue(m21 is core.List<core.int> Function<A>(List<Function> x) Function(int x));
+    Expect.isTrue(confuse(m21) is F21);
+    // In checked mode, verifies the type.
+    x21 = m21;
+    l21 = m21;
+    x21 = confuse(m21);
+    l21 = confuse(m21);
+
+  }
+
+  /// A Function<A>(core.List<core.int> x) Function(int x)
+  void testF22() {
+    Expect.isTrue(f22 is F22);
+    Expect.isTrue(confuse(f22) is F22);
+    // In checked mode, verifies the type.
+    A Function<A>(core.List<core.int> x) Function(int x) l22;
+    // The static function f22 sets `T` to `int`.
+    if (!tIsBool) {
+      x22 = f22 as dynamic;
+      l22 = f22 as dynamic;
+      x22 = confuse(f22);
+      l22 = confuse(f22);
+    }
+
+    Expect.isTrue(m22 is F22);
+    Expect.isTrue(m22 is A Function<A>(core.List<core.int> x) Function(int x));
+    Expect.isTrue(confuse(m22) is F22);
+    // In checked mode, verifies the type.
+    x22 = m22;
+    l22 = m22;
+    x22 = confuse(m22);
+    l22 = confuse(m22);
+
+  }
+
+  /// void Function(B x) Function<B extends core.int>(int x)
+  void testF23() {
+    Expect.isTrue(f23 is F23);
+    Expect.isTrue(confuse(f23) is F23);
+    // In checked mode, verifies the type.
+    void Function(B x) Function<B extends core.int>(int x) l23;
+    // The static function f23 sets `T` to `int`.
+    if (!tIsBool) {
+      x23 = f23 as dynamic;
+      l23 = f23 as dynamic;
+      x23 = confuse(f23);
+      l23 = confuse(f23);
+    }
+
+    Expect.isTrue(m23 is F23);
+    Expect.isTrue(m23 is void Function(B x) Function<B extends core.int>(int x));
+    Expect.isTrue(confuse(m23) is F23);
+    // In checked mode, verifies the type.
+    x23 = m23;
+    l23 = m23;
+    x23 = confuse(m23);
+    l23 = confuse(m23);
+
+  }
+
+
+}
+
+void main() {
+  new U37().runTests();
+  new U37<int>(tIsInt: true).runTests();
+  new U37<bool>(tIsBool: true).runTests();
+}
+