Fix status file for analyzer.

It seems like the "missing" analysis error is a strong mode error, so I
don't think the error should even appear without strong mode turned on?

In any case, a "missing" error for non strong users is not something I
would expect to be blocking. Better to fix the build

Change-Id: I5f56b5847b655b501e8146200ab4b84fddbf21cc
Reviewed-on: https://dart-review.googlesource.com/56600
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
diff --git a/tests/language_2/language_2_analyzer.status b/tests/language_2/language_2_analyzer.status
index 402c681..fdfc105 100644
--- a/tests/language_2/language_2_analyzer.status
+++ b/tests/language_2/language_2_analyzer.status
@@ -1350,6 +1350,7 @@
 generic_field_mixin6_test/01: MissingCompileTimeError
 generic_function_typedef2_test/04: MissingCompileTimeError
 generic_methods_generic_function_result_test/01: MissingCompileTimeError # Issue #30207
+generic_methods_overriding_test/01: MissingCompileTimeError
 generic_test/01: MissingCompileTimeError
 identical_const_test/01: MissingCompileTimeError
 identical_const_test/02: MissingCompileTimeError