[BUG] InternalExecutionError when running getsObjectTabIcons method

[RonanWilliams1]

Description:
Graph Engine identified your source and sink, but you must manually verify that you have a sanitizer in this path. Then, add an engine directive to skip the path. Next, create a Github issue for the Code Analyzer team that includes the error and stack trace. After we fix this issue, check the Code Analyzer release notes for more info. Error and stacktrace: UnexpectedException: ApexStandardValue{apexType='System.Schema'} ApexValue(SystemSchema) {status=INITIALIZED, declarationVertex=null, valueVertex=null, resolvedValues={}, returnedFrom=null, invocableExpression=null, method=null}: com.salesforce.graph.symbols.apex.system.SystemSchema.executeMethod(SystemSchema.java:106);com.salesforce.graph.symbols.PathScopeVisitor.afterMethodCall(PathScopeVisitor.java:659);com.salesforce.graph.symbols.DefaultSymbolProviderVertexVisitor.afterMethodCall(DefaultSymbolProviderVertexVisitor.java:318);com.salesforce.graph.ops.expander.ApexPathExpander.handleMethodCall(ApexPathExpander.java:681);com.salesforce.graph.ops.expander.ApexPathExpander.visit(ApexPathExpander.java:532);com.salesforce.graph.ops.expander.ApexPathExpander.visit(ApexPathExpander.java:452)

Method code where the error occurs:

`
public static Map<String,String> getsObjectTabIcons() {

    Map<String,String> sObjectIcons = new Map<String,String>();
    
    // get sObject tab icons
    for(Schema.DescribeTabSetResult tsr : Schema.describeTabs()){
        for(Schema.DescribeTabResult tr : tsr.getTabs()) {
            for (Schema.DescribeIconResult ir : tr.getIcons()) {
                if (ir.getContentType() == 'image/svg+xml'){
                    String url = ir.getUrl().substringBeforeLast('.svg');
                    List<String> urlElements = url.split('/');
                    sObjectIcons.put(tr.getSobjectName(),urlElements[urlElements.size() - 2] + ':' + urlElements[urlElements.size() - 1]);
                }
            }
        }
    }

    // add non tab icons
    Map<String,String> nonTabIcons = new Map<String,String>{
        'Task' => 'standard:task'
    };

    for (String sObjectName : nonTabIcons.keySet()){
        if (!sObjectIcons.containsKey(sObjectName)){
            sObjectIcons.put(sObjectName, nonTabIcons.get(sObjectName));
        }
    }

    return sObjectIcons;
} `

Steps To Reproduce:
I ran the following scanner:
sf scanner run dfa -f html -o QA/appexchange/CodeAnalyzerDFA.html -t './' -c 'Security' --projectdir='./'

Desktop:
Provide these details:

Operating System: Mac OS
Code Analyzer version: v3.20.0
Salesforce CLI version: @salesforce/cli/2.23.20 win32-x64 node-v18.19.0
Additional Context:

Workaround:
Tried the directives to exclude from the engine, but it doesn't work
Urgency:
Medium

[git2gus]

This issue has been linked to a new work item: W-15080648

[stephen-carter-at-sf]

Marking this as a duplicate of #1497