fix #30290, assertion messages that contain `yield`

pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart

Index: pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart b/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart
index 880d0db1adcd1316285ab24d7a8407404a9c9d44..17066d60754c0da97f28774e4fbb6dbfe98f8774 100644
--- a/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart
+++ b/pkg/dev_compiler/tool/input_sdk/private/ddc_runtime/operations.dart
@@ -688,20 +688,12 @@ map(values, [K, V]) => JS('', '''(() => {
   return map;
 })()''');
 
-@JSExportName('assert')
-assert_(condition, message()) {
-  if (JS('bool', '# !== true', condition)) {
-    if (condition == null) _throwBooleanConversionError();
-    throwAssertionError(message);
-  }
-}
-
-dassert(value, message()) {
+bool dassert(value) {
   if (JS('bool', '# != null && #[#] instanceof #', value, value, _runtimeType,
       AbstractFunctionType)) {
     value = JS('', '#(#)', dcall, value);
   }
-  return assert_(dtest(value), message);
+  return dtest(value);
 }
 
 /// Store a JS error for an exception.  For non-primitives, we store as an