partial fix for #414, nSM message for dcall should show correct target

test/browser/runtime_tests.js

Index: test/browser/runtime_tests.js
diff --git a/test/browser/runtime_tests.js b/test/browser/runtime_tests.js
index 030be22ac847fd6c3fb4f1d582bd22cd29b16f13..7e3538e9c72ebe6408439209bbcfa23de7161784 100644
--- a/test/browser/runtime_tests.js
+++ b/test/browser/runtime_tests.js
@@ -24,6 +24,20 @@ suite('generic', () => {
     assert.throws(() => { generic(function(){}); });
   });
 
+  test('dcall noSuchMethod has correct error target', () => {
+    assert.throws(() => dart.dcall(42),
+        new RegExp('NoSuchMethodError.*\nReceiver: 42', 'm'),
+        'Calls with non-function receiver should throw a NoSuchMethodError' +
+        ' with correct target');
+    
+    // TODO(jmesserly): we should show the name "print" in there somewhere.
+    assert.throws(() => dart.dcall(core.print, 1, 2, 3),
+        new RegExp('NoSuchMethodError.*\n' +
+        "Receiver: Instance of '\\(Object\\) -> void'", 'm'),
+        'Calls with incorrect argument types should throw a NoSuchMethodError' +
+        ' with correct target');
+  });
+
   test('can throw number', () => {
     try {
       dart.throw(42);