fix #27784 and fix #27785, fromEnvironment constants in DDC

pkg/dev_compiler/tool/sdk_expected_errors.txt

Index: pkg/dev_compiler/tool/sdk_expected_errors.txt
diff --git a/pkg/dev_compiler/tool/sdk_expected_errors.txt b/pkg/dev_compiler/tool/sdk_expected_errors.txt
index 8e0b1c4f9065d9f4f730191979062ecc7560c81f..80eacbc89a5eafc9d985d257198439ef4419a129 100644
--- a/pkg/dev_compiler/tool/sdk_expected_errors.txt
+++ b/pkg/dev_compiler/tool/sdk_expected_errors.txt
@@ -3,6 +3,12 @@
 [error] Invalid override. The type of 'ChunkedConverter.bind' ('(dynamic) → dynamic') isn't a subtype of 'Converter<S, T>.bind' ('(Stream<S>) → Stream<T>'). (dart:convert/chunked_conversion.dart, line 14, col 3)
 [error] Invalid override. The type of 'ChunkedConverter.bind' ('(dynamic) → dynamic') isn't a subtype of 'StreamTransformer<S, T>.bind' ('(Stream<S>) → Stream<T>'). (dart:convert/chunked_conversion.dart, line 14, col 3)
 [error] Invalid override. The type of 'ChunkedConverter.startChunkedConversion' ('(dynamic) → dynamic') isn't a subtype of 'Converter<S, T>.startChunkedConversion' ('(Sink<T>) → Sink<S>'). (dart:convert/chunked_conversion.dart, line 15, col 3)
+[error] Only redirecting factory constructors can be declared to be 'const'. (dart:core/bool.dart, line 41, col 9)
+[error] Const constructors can't throw exceptions. (dart:core/bool.dart, line 42, col 5)
+[error] Only redirecting factory constructors can be declared to be 'const'. (dart:core/int.dart, line 33, col 9)
+[error] Const constructors can't throw exceptions. (dart:core/int.dart, line 34, col 5)
+[error] Only redirecting factory constructors can be declared to be 'const'. (dart:core/string.dart, line 156, col 9)
+[error] Const constructors can't throw exceptions. (dart:core/string.dart, line 157, col 5)
 [error] Invalid override. The type of '_EventStreamSubscription.asFuture' ('([dynamic]) → Future<dynamic>') isn't a subtype of 'StreamSubscription<T>.asFuture' ('<E>([E]) → Future<E>'). (dart:html, line 40152, col 3)
 [error] Invalid override. The type of 'JsArray.[]=' ('(Object, E) → void') isn't a subtype of 'JsObject.[]=' ('(Object, dynamic) → dynamic'). (dart:js, line 363, col 3)
 [warning] Unsafe implicit cast from 'List<dynamic>' to 'List<String>'. This usually indicates that type information was lost and resulted in 'dynamic' and/or a place that will have a failure at runtime. (dart:_js_helper/regexp_helper.dart, line 140, col 43)