Do not suppress implicit constructors that need a super call.

lib/runtime/dart/_interceptors.js

 var _interceptors;
 (function(exports) {
   'use strict';
   let JSArray = Array;
   let JSMutableArray$ = dart.generic(function(E) {
-    class JSMutableArray extends JSArray$(E) {}
+    class JSMutableArray extends JSArray$(E) {
+      JSMutableArray() {
+        super.JSArray();
+      }
+    }
     JSMutableArray[dart.implements] = () => [JSMutableIndexable];
     return JSMutableArray;
   });
   let JSMutableArray = JSMutableArray$();
   let JSFixedArray$ = dart.generic(function(E) {
     class JSFixedArray extends JSMutableArray$(E) {}
     return JSFixedArray;
   });
   let JSFixedArray = JSFixedArray$();
   let JSExtendableArray$ = dart.generic(function(E) {
@@ skipping 395 matching lines @@
   JSInt[dart.implements] = () => [core.int, core.double];
   class JSDouble extends JSNumber {
     JSDouble() {
       super.JSNumber();
     }
     get runtimeType() {
       return core.double;
     }
   }
   JSDouble[dart.implements] = () => [core.double];
-  class JSPositiveInt extends JSInt {}
+  class JSPositiveInt extends JSInt {
+    JSPositiveInt() {
+      super.JSInt();
+    }
+  }
   class JSUInt32 extends JSPositiveInt {}
   class JSUInt31 extends JSUInt32 {}
   let _defaultSplit = Symbol('_defaultSplit');
   class JSString extends Interceptor {
     JSString() {
       super.Interceptor();
     }
     codeUnitAt(index) {
       if (!(typeof index == 'number'))
         throw new core.ArgumentError(index);
@@ skipping 639 matching lines @@
   exports.findInterceptorForType = findInterceptorForType;
   exports.JSBool = JSBool;
   exports.JSNull = JSNull;
   exports.JSIndexable = JSIndexable;
   exports.JSMutableIndexable = JSMutableIndexable;
   exports.JSObject = JSObject;
   exports.JavaScriptObject = JavaScriptObject;
   exports.PlainJavaScriptObject = PlainJavaScriptObject;
   exports.UnknownJavaScriptObject = UnknownJavaScriptObject;
 })(_interceptors || (_interceptors = {}));