use js_ast instead of strings to generate JS

test/codegen/expect/constructors/constructors.js

 var constructors;
-(function (constructors) {
+(function(constructors) {
   'use strict';
   class A extends dart.Object {
   }
-
   class B extends dart.Object {
     B() {
     }
   }
-
   class C extends dart.Object {
     C$named() {
     }
   }
-  dart.defineNamedConstructor(C, "named");
-
+  dart.defineNamedConstructor(C, 'named');
   class C2 extends C {
     C2$named() {
       super.C$named();
     }
   }
-  dart.defineNamedConstructor(C2, "named");
-
+  dart.defineNamedConstructor(C2, 'named');
   class D extends dart.Object {
     D() {
     }
     D$named() {
     }
   }
-  dart.defineNamedConstructor(D, "named");
-
+  dart.defineNamedConstructor(D, 'named');
   class E extends dart.Object {
     E(name) {
       this.name = name;
     }
   }
-
   class F extends E {
     F(name) {
       super.E(name);
     }
   }
-
   class G extends dart.Object {
     G(p1) {
-      if (p1 === undefined) p1 = null;
+      if (p1 === void 0)
+        p1 = null;
     }
   }
-
   class H extends dart.Object {
     H(opt$) {
-      let p1 = opt$.p1 === undefined ? null : opt$.p1;
+      let p1 = opt$.p1 === void 0 ? null : opt$.p1;
     }
   }
-
   class I extends dart.Object {
     I() {
       this.name = 'default';
     }
     I$named(name) {
       this.name = name;
     }
   }
-  dart.defineNamedConstructor(I, "named");
-
+  dart.defineNamedConstructor(I, 'named');
   class J extends dart.Object {
     J() {
       this.initialized = true;
       this.nonInitialized = null;
     }
   }
-
   class K extends dart.Object {
     K() {
       this.s = 'a';
     }
     K$withS(s) {
       this.s = s;
     }
   }
-  dart.defineNamedConstructor(K, "withS");
-
+  dart.defineNamedConstructor(K, 'withS');
   class L extends dart.Object {
     L(foo) {
       this.foo = foo;
     }
   }
-
   class M extends L {
     M$named(x) {
       super.L(x + 42);
     }
   }
-  dart.defineNamedConstructor(M, "named");
-
+  dart.defineNamedConstructor(M, 'named');
   class N extends M {
     N$named(y) {
       super.M$named(y + 100);
     }
   }
-  dart.defineNamedConstructor(N, "named");
-
+  dart.defineNamedConstructor(N, 'named');
   class P extends N {
     P(z) {
       super.N$named(z + 9000);
     }
+    P$foo(x) {
+      this.P(x + 42);
+    }
+    P$bar() {
+      this.P$foo(1);
+    }
   }
-
+  dart.defineNamedConstructor(P, 'foo');
+  dart.defineNamedConstructor(P, 'bar');
   // Exports:
   constructors.A = A;
   constructors.B = B;
   constructors.C = C;
   constructors.C2 = C2;
   constructors.D = D;
   constructors.E = E;
   constructors.F = F;
   constructors.G = G;
   constructors.H = H;
   constructors.I = I;
   constructors.J = J;
   constructors.K = K;
   constructors.L = L;
   constructors.M = M;
   constructors.N = N;
   constructors.P = P;
 })(constructors || (constructors = {}));