Function isSignatureAssignableTo

test/fixtures/snapshot/typescript.js:64327–64330

(source, target, ignoreReturnTypes)

            return checkTypeRelatedTo(source, target, comparableRelation, errorNode, headMessage, containingMessageChain);
        }
        function isSignatureAssignableTo(source, target, ignoreReturnTypes) {
            return compareSignaturesRelated(source, target, ignoreReturnTypes ? 4 /* SignatureCheckMode.IgnoreReturnTypes */ : 0, /*reportErrors*/ false, 
            /*errorReporter*/ undefined, /*errorReporter*/ undefined, compareTypesAssignable, /*reportUnreliableMarkers*/ undefined) !== 0 /* Ternary.False */;
        }
        /**
         * Returns true if `s` is `(...args: any[]) => any` or `(this: any, ...args: any[]) => any`
         */