Function isPropertySymbolTypeRelated

test/fixtures/snapshot/typescript.js:66326–66331

(sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState)

                return result || properties;
            }
            function isPropertySymbolTypeRelated(sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState) {
                var targetIsOptional = strictNullChecks && !!(ts.getCheckFlags(targetProp) & 48 /* CheckFlags.Partial */);
                var effectiveTarget = addOptionality(getNonMissingTypeOfSymbol(targetProp), /*isProperty*/ false, targetIsOptional);
                var effectiveSource = getTypeOfSourceProperty(sourceProp);
                return isRelatedTo(effectiveSource, effectiveTarget, 3 /* RecursionFlags.Both */, reportErrors, /*headMessage*/ undefined, intersectionState);
            }
            function propertyRelatedTo(source, target, sourceProp, targetProp, getTypeOfSourceProperty, reportErrors, intersectionState, skipOptional) {
                var sourcePropFlags = ts.getDeclarationModifierFlagsFromSymbol(sourceProp);
                var targetPropFlags = ts.getDeclarationModifierFlagsFromSymbol(targetProp);