Add option to suppress type-check whitelisting

pkg/dev_compiler/lib/js/es6/dart_sdk.js

Index: pkg/dev_compiler/lib/js/es6/dart_sdk.js
diff --git a/pkg/dev_compiler/lib/js/es6/dart_sdk.js b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
index 70a515d7bbbac9a3bed5b9715449ed7527040d25..53489db2a46d484cf1387f7a7a8450255e3e2727 100644
--- a/pkg/dev_compiler/lib/js/es6/dart_sdk.js
+++ b/pkg/dev_compiler/lib/js/es6/dart_sdk.js
@@ -707,6 +707,7 @@ let dynamicAndStringTodynamic = () => (dynamicAndStringTodynamic = dart.constFn(
 let dynamicAndStringAnddynamicTovoid = () => (dynamicAndStringAnddynamicTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [dart.dynamic, core.String, dart.dynamic])))();
 let FAndintToF = () => (FAndintToF = dart.constFn(dart.definiteFunctionType(F => [F, [F, core.int]])))();
 let JSSyntaxRegExpTodynamic = () => (JSSyntaxRegExpTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [_js_helper.JSSyntaxRegExp])))();
+let ListToListOfString = () => (ListToListOfString = dart.constFn(dart.definiteFunctionType(ListOfString(), [core.List])))();
 let JSSyntaxRegExpToint = () => (JSSyntaxRegExpToint = dart.constFn(dart.definiteFunctionType(core.int, [_js_helper.JSSyntaxRegExp])))();
 let JSSyntaxRegExpAndStringAndintToMatch = () => (JSSyntaxRegExpAndStringAndintToMatch = dart.constFn(dart.definiteFunctionType(core.Match, [_js_helper.JSSyntaxRegExp, core.String, core.int])))();
 let dynamicAnddynamicAnddynamicToint = () => (dynamicAnddynamicAnddynamicToint = dart.constFn(dart.definiteFunctionType(core.int, [dart.dynamic, dart.dynamic, dart.dynamic])))();
@@ -1884,6 +1885,9 @@ dart.isGroundType = function(type) {
 dart.trapRuntimeErrors = function(flag) {
   dart._trapRuntimeErrors = flag;
 };
+dart.ignoreWhitelistedErrors = function(flag) {
+  dart._ignoreWhitelistedErrors = flag;
+};
 dart.throwCastError = function(object, actual, type) {
   var found = dart.typeName(actual);
   var expected = dart.typeName(type);
@@ -2247,7 +2251,7 @@ dart.strongInstanceOf = function(obj, type, ignoreFromWhiteList) {
   let result = dart.isSubtype(actual, type);
   if (result || actual == dart.jsobject || actual == core.int && type == core.double) return true;
   if (result === false) return false;
-  if (ignoreFromWhiteList == void 0) return result;
+  if (!dart._ignoreWhitelistedErrors || ignoreFromWhiteList == void 0) return result;
   if (dart._ignoreTypeFailure(actual, type)) return true;
   return result;
 };
@@ -2991,6 +2995,7 @@ dart.setSignature(dart.Typedef, {
 dart._typeFormalCount = Symbol("_typeFormalCount");
 dart.isSubtype = dart._subtypeMemo((t1, t2) => t1 === t2 || dart._isSubtype(t1, t2, true));
 dart._trapRuntimeErrors = true;
+dart._ignoreWhitelistedErrors = true;
 dart._jsIterator = Symbol("_jsIterator");
 dart._current = Symbol("_current");
 dart._AsyncStarStreamController = class _AsyncStarStreamController {
@@ -12831,6 +12836,10 @@ _js_helper.regExpGetNative = function(regexp) {
   return regexp[_nativeRegExp];
 };
 dart.lazyFn(_js_helper.regExpGetNative, () => JSSyntaxRegExpTodynamic());
+_js_helper._stringList = function(l) {
+  return ListOfString()._check(l == null ? l : dart.list(l, core.String));
+};
+dart.lazyFn(_js_helper._stringList, () => ListToListOfString());
 const _nativeGlobalVersion = Symbol('_nativeGlobalVersion');
 _js_helper.regExpGetGlobalNative = function(regexp) {
   let nativeRegexp = regexp[_nativeGlobalVersion];
@@ -12897,7 +12906,7 @@ _js_helper.JSSyntaxRegExp = class JSSyntaxRegExp extends core.Object {
   firstMatch(string) {
     let m = this[_nativeRegExp].exec(_js_helper.checkString(string));
     if (m == null) return null;
-    return new _js_helper._MatchImplementation(this, m);
+    return new _js_helper._MatchImplementation(this, _js_helper._stringList(m));
   }
   hasMatch(string) {
     return this[_nativeRegExp].test(_js_helper.checkString(string));
@@ -12921,7 +12930,7 @@ _js_helper.JSSyntaxRegExp = class JSSyntaxRegExp extends core.Object {
     regexp.lastIndex = start;
     let match = regexp.exec(string);
     if (match == null) return null;
-    return new _js_helper._MatchImplementation(this, ListOfString()._check(match));
+    return new _js_helper._MatchImplementation(this, _js_helper._stringList(match));
   }
   [_execAnchored](string, start) {
     let regexp = this[_nativeAnchoredVersion];
@@ -12930,7 +12939,7 @@ _js_helper.JSSyntaxRegExp = class JSSyntaxRegExp extends core.Object {
     if (match == null) return null;
     if (match[dartx._get](dart.notNull(match[dartx.length]) - 1) != null) return null;
     match[dartx.length] = dart.notNull(match[dartx.length]) - 1;
-    return new _js_helper._MatchImplementation(this, ListOfString()._check(match));
+    return new _js_helper._MatchImplementation(this, _js_helper._stringList(match));
   }
   matchAsPrefix(string, start) {
     if (start === void 0) start = 0;