fixes #158, precendence of call and access in new

lib/runtime/dart/_internal.js

Index: lib/runtime/dart/_internal.js
diff --git a/lib/runtime/dart/_internal.js b/lib/runtime/dart/_internal.js
index 28c8148f5bd8eff012b3737e6a29dfe7c060ab59..9bb278987a5bf01afdcf9fdeb5ca0191ea4f948b 100644
--- a/lib/runtime/dart/_internal.js
+++ b/lib/runtime/dart/_internal.js
@@ -372,7 +372,7 @@ var _internal;
         if (dart.is(iterable, EfficientLength)) {
           return new (EfficientLengthMappedIterable$(S, T))(iterable, func);
         }
-        return new MappedIterable$(S, T)._(dart.as(iterable, core.Iterable$(S)), func);
+        return new (MappedIterable$(S, T))._(dart.as(iterable, core.Iterable$(S)), func);
       }
       _(iterable, f) {
         this[_iterable] = iterable;
@@ -560,7 +560,7 @@ var _internal;
         if (dart.is(iterable, EfficientLength)) {
           return new (EfficientLengthTakeIterable$(E))(iterable, takeCount);
         }
-        return new TakeIterable$(E)._(iterable, takeCount);
+        return new (TakeIterable$(E))._(iterable, takeCount);
       }
       _(iterable, takeCount) {
         this[_iterable] = iterable;
@@ -663,7 +663,7 @@ var _internal;
         if (dart.is(iterable, EfficientLength)) {
           return new (EfficientLengthSkipIterable$(E))(iterable, count);
         }
-        return new SkipIterable$(E)._(iterable, count);
+        return new (SkipIterable$(E))._(iterable, count);
       }
       _(iterable, skipCount) {
         this[_iterable] = iterable;
@@ -679,7 +679,7 @@ var _internal;
           throw new core.ArgumentError.value(this[_skipCount], "count is not an integer");
         }
         core.RangeError.checkNotNegative(this[_skipCount], "count");
-        return new SkipIterable$(E)._(this[_iterable], dart.notNull(this[_skipCount]) + dart.notNull(count));
+        return new (SkipIterable$(E))._(this[_iterable], dart.notNull(this[_skipCount]) + dart.notNull(count));
       }
       get [core.$iterator]() {
         return new (SkipIterator$(E))(this[_iterable][core.$iterator], this[_skipCount]);