mark fields as deprecated

Author: jyameo

dwds/lib/dart_web_debug_service.dart

@@ -66,6 +66,10 @@ class Dwds {
     required Stream<BuildResult> buildResults,
     required ConnectionProvider chromeConnection,
     required ToolConfiguration toolConfiguration,
+    @Deprecated(
+      'Use runMainAtStart instead. This parameter is ignored and will be removed in a future version.',
+    )
+    bool injectDebuggingSupportCode = true,
     bool runMainAtStart = false,
   }) async {
     globalToolConfiguration = toolConfiguration;