Name and hoist types

test/codegen/type_hoisting.dart

+// compile options: --hoist-signature-types --hoist-instance-creation --hoist-type-tests
+import "package:expect/expect.dart";
+
+class A<T> {
+  A(this.x, T z);
+  A.make();
+  void f(T x) {}
+  static String g(String x) {return x;}
+  T x;
+}
+
+class B extends A<int> {
+  B(int x, int z) : super(x, z);
+  B.make();
+  void f(int x) {}
+  static int g(int x) {return x;}
+}
+
+class C {
+  C(this.x, int z);
+  void f(int x) {}
+  static int g(int x) {return x;}
+  int x = 0;
+}
+typedef void ToVoid<T>(T x);
+typedef T Id<T>(T x);
+
+void main() {
+  {
+    A<String> a = new A<String>("hello", "world");
+    Expect.isTrue(new A.make<String>() is! A<int>);
+    Expect.isTrue(new A.make() is! A<int>);
+    Expect.isTrue(a is! A<int>);
+    Expect.isTrue(a is A<String>);
+    Expect.isTrue(a.f is ToVoid<String>);
+    Expect.isTrue(a.f is! ToVoid<int>);
+    Expect.isTrue(A.g is Id<String>);
+    Expect.isTrue(A.g is! Id<int>);
+  }
+  {
+    B b = new B(0, 1);
+    Expect.isTrue(new B.make() is B);
+    Expect.isTrue(new B.make() is A<int>);
+    Expect.isTrue(b is B);
+    Expect.isTrue(b is! B);
+    Expect.isTrue(b.f is! ToVoid<String>);
+    Expect.isTrue(b.f is ToVoid<int>);
+    Expect.isTrue(B.g is! Id<String>);
+    Expect.isTrue(B.g is Id<int>);
+  }
+  {
+    C c = new C(0, 1);
+    Expect.isTrue(c is C);
+    Expect.isTrue(c is! C);
+    Expect.isTrue(c.f is! ToVoid<String>);
+    Expect.isTrue(c.f is ToVoid<int>);
+    Expect.isTrue(C.g is! Id<String>);
+    Expect.isTrue(C.g is Id<int>);
+  }
+}