dart2js: Move parameterStub generation to parameter_stub_generator and add parameter stubs to model.

pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart
index e22631a6084d05d6b34ff61f626bd8bd11b1dab7..e30ecdcdbe73ec55ea85d94c5b1c40d49dc60af3 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/container_builder.dart
@@ -238,7 +238,7 @@ class ContainerBuilder extends CodeEmitterHelper {
     String name = method.name;
     final FunctionSignature parameters = member.functionSignature;
     jsAst.Expression code = method.code;
-    final bool needsStubs = method.needsStubs;
+    final bool needsStubs = !method.parameterStubs.isEmpty;
     final bool canTearOff = method.needsTearOff;
     final String tearOffName = method.tearOffName;
     final bool canBeReflected = method.canBeReflected;
@@ -254,16 +254,12 @@ class ContainerBuilder extends CodeEmitterHelper {
     if (!needStructuredInfo) {
       compiler.dumpInfoTask.registerElementAst(member,
           builder.addProperty(name, code));
-      if (needsStubs) {
-        addParameterStubs(
-            member,
-            (Selector selector, jsAst.Fun function) {
-              String invocationName = namer.invocationName(selector);
-              emitter.interceptorEmitter
-                  .recordMangledNameOfMemberMethod(member, invocationName);
-              compiler.dumpInfoTask.registerElementAst(member,
-                  builder.addProperty(invocationName, function));
-            });
+
+      for (ParameterStubMethod method in method.parameterStubs) {
+        jsAst.Property property = builder.addProperty(method.name, method.code);
+        compiler.dumpInfoTask.registerElementAst(member, property);
+        emitter.interceptorEmitter
+            .recordMangledNameOfMemberMethod(member, method.name);
       }
       return;
     }
@@ -336,31 +332,30 @@ class ContainerBuilder extends CodeEmitterHelper {
     List tearOffInfo = [new jsAst.LiteralString(callSelectorString)];
 
     if (needsStubs || canTearOff) {
-      addParameterStubs(member, (Selector selector, jsAst.Fun function) {
 
-        String invocationName = namer.invocationName(selector);
+      for (ParameterStubMethod method in method.parameterStubs) {
+        String invocationName = method.name;
         emitter.interceptorEmitter.
-            recordMangledNameOfMemberMethod(member, invocationName);
-        expressions.add(function);
+                    recordMangledNameOfMemberMethod(member, invocationName);
+        expressions.add(method.code);
         if (member.isInstanceMember) {
-          Set invokedSelectors =
-              compiler.codegenWorld.invokedNames[member.name];
-            expressions.add(js.string(invocationName));
+          expressions.add(js.string(invocationName));
         } else {
           expressions.add(js('null'));
           // TOOD(ahe): Since we know when reading static data versus instance
           // data, we can eliminate this element.
         }
+
         Set<Selector> callSelectors = compiler.codegenWorld.invokedNames[
-            namer.closureInvocationSelectorName];
-        Selector callSelector = selector.toCallSelector();
+                   namer.closureInvocationSelectorName];
+        Selector callSelector = method.selector.toCallSelector();
         String callSelectorString = 'null';
         if (canTearOff && callSelectors != null &&
             callSelectors.contains(callSelector)) {
           callSelectorString = '"${namer.invocationName(callSelector)}"';
         }
         tearOffInfo.add(new jsAst.LiteralString(callSelectorString));
-      }, canTearOff);
+      }
     }
 
     jsAst.Expression memberTypeExpression;