FEDX-530: Remove sdk_version_<language_feature> rules

[evanweible-wf]

On older versions of Dart (early days of 2.x), the process around introducing new language features wasn't as mature as it is today. If you used a language feature without raising the SDK minimum for your package to the appropriate version, you'd get a diagnostic from the analyzer but it wasn't an error. So, this package promoted those diagnostics to errors to ensure that you wouldn't miss them.

Here are the rules that we configured:

Rule	Docs	Supported since Dart
sdk_version_async_exported_from_core	link	2.1.0
sdk_version_as_expression_in_const_context	link	2.3.2
sdk_version_bool_operator_in_const_context	link	2.3.2
sdk_version_eq_eq_operator_in_const_context	link	2.3.2
sdk_version_extension_methods	link	2.6.0
sdk_version_is_expression_in_const_context	link	2.3.2
sdk_version_set_literal	link	2.2.0
sdk_version_ui_as_code	link	2.3.0
sdk_version_ui_as_code_in_const_context	link	2.5.0

Dart 3.2.0 was just released and dropped support for those diagnostics, meaning that any package with an analysis_options.yaml that includes those rules would receive a warning from the analyzer like this:

warning • analysis_options.yaml:1:10 • Warning in the included options file workiva_analysis_options/lib/v2.yaml(3923..3944): 'sdk_version_ui_as_code' isn't a recognized error code. • included_file_warning

For the diagnostics listed above, the corresponding language features have been supported since Dart 2.6 or earlier. This package already specifies a minimum SDK version of 2.12.0, so there's no need to include these rules any longer.

[aviary3-wk]

Security Insights

No security relevant content was detected by automated scans.

Action Items

• Review PR for security impact; comment "security review required" if needed or unsure
• Verify aviary.yaml coverage of security relevant code

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Questions or Comments? Reach out on Slack: #support-infosec.

[evanweible-wf]

QA +1

• Tested in a package on Dart 3.2 and it no longer warns about these rules.

@Workiva/release-management-p

[rmconsole-wf]

+1 from RM