[benchmarks] Disable literal_only_boolean_expressions/unnecessary_await_in_return analyzer hints

The literal_only_boolean_expressions analyzer hint flags this code:

   while (true) {
     ...
     if (cond) break;
     ...
   }

=> This is very common code.

The unnecessary_await_in_return analyzer hint flags this code:

    Future foo() async {
      ...
      return await foo();
    }

=> Addressing this hint by removing the `await` changes semantics,
performance characteristics and async stack traces.

Change-Id: I3c126123bfba7386b01033084e954267af21ba13
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152001
Reviewed-by: Alexander Markov <[email protected]>
Commit-Queue: Martin Kustermann <[email protected]>

Author: mkustermann

benchmarks/analysis_options.yaml

@@ -41,7 +41,7 @@ linter:
     - library_names
     - library_prefixes
     - list_remove_unrelated_type
-    - literal_only_boolean_expressions
+    #- literal_only_boolean_expressions
     - no_adjacent_strings_in_list
     - no_duplicate_case_values
     #- non_constant_identifier_names
@@ -77,7 +77,7 @@ linter:
     - throw_in_finally
     - type_init_formals
     - unawaited_futures
-    - unnecessary_await_in_return
+    #- unnecessary_await_in_return
     - unnecessary_brace_in_string_interps
     - unnecessary_const
     - unnecessary_getters_setters