Fix highlight range for missing enum constant in switch (issue 23904)

pkg/analyzer/lib/src/generated/error_verifier.dart

Index: pkg/analyzer/lib/src/generated/error_verifier.dart
diff --git a/pkg/analyzer/lib/src/generated/error_verifier.dart b/pkg/analyzer/lib/src/generated/error_verifier.dart
index e80e02abdd0c8528ad1717884a64134c084879e3..e0303d27b62fec14aa7354e1c38b80fa4427f355 100644
--- a/pkg/analyzer/lib/src/generated/error_verifier.dart
+++ b/pkg/analyzer/lib/src/generated/error_verifier.dart
@@ -4113,8 +4113,10 @@ class ErrorVerifier extends RecursiveAstVisitor<Object> {
       return false;
     }
     for (int i = 0; i < nameCount; i++) {
-      _errorReporter.reportErrorForNode(
-          CompileTimeErrorCode.MISSING_ENUM_CONSTANT_IN_SWITCH, statement,
+      int offset = statement.offset;
+      int end = statement.rightParenthesis.end;
+      _errorReporter.reportErrorForOffset(
+          CompileTimeErrorCode.MISSING_ENUM_CONSTANT_IN_SWITCH, offset, end - offset,
           [constantNames[i]]);
     }
     return true;