Function getIterationTypesOfIterableFast

test/fixtures/snapshot/typescript.js:83308–83331

* Gets the *yield*, *return*, and *next* types of an `Iterable`-like or `AsyncIterable`-like * type from from common heuristics. * * If we previously analyzed this type and found no iteration types, `noIterationTypes` is * returned. If we found iteration types, an

(type, resolver)

         * `getIterationTypesOfIterable` instead.
         */
        function getIterationTypesOfIterableFast(type, resolver) {
            // As an optimization, if the type is an instantiation of one of the following global types, then
            // just grab its related type argument:
            // - `Iterable<T>` or `AsyncIterable<T>`
            // - `IterableIterator<T>` or `AsyncIterableIterator<T>`
            var globalType;
            if (isReferenceToType(type, globalType = resolver.getGlobalIterableType(/*reportErrors*/ false)) ||
                isReferenceToType(type, globalType = resolver.getGlobalIterableIteratorType(/*reportErrors*/ false))) {
                var yieldType = getTypeArguments(type)[0];
                // The "return" and "next" types of `Iterable` and `IterableIterator` are defined by the
                // iteration types of their `[Symbol.iterator]()` method. The same is true for their async cousins.
                // While we define these as `any` and `undefined` in our libs by default, a custom lib *could* use
                // different definitions.
                var _a = getIterationTypesOfGlobalIterableType(globalType, resolver), returnType = _a.returnType, nextType = _a.nextType;
                return setCachedIterationTypes(type, resolver.iterableCacheKey, createIterationTypes(resolver.resolveIterationType(yieldType, /*errorNode*/ undefined) || yieldType, resolver.resolveIterationType(returnType, /*errorNode*/ undefined) || returnType, nextType));
            }
            // As an optimization, if the type is an instantiation of the following global type, then
            // just grab its related type arguments:
            // - `Generator<T, TReturn, TNext>` or `AsyncGenerator<T, TReturn, TNext>`
            if (isReferenceToType(type, resolver.getGlobalGeneratorType(/*reportErrors*/ false))) {
                var _b = getTypeArguments(type), yieldType = _b[0], returnType = _b[1], nextType = _b[2];
                return setCachedIterationTypes(type, resolver.iterableCacheKey, createIterationTypes(resolver.resolveIterationType(yieldType, /*errorNode*/ undefined) || yieldType, resolver.resolveIterationType(returnType, /*errorNode*/ undefined) || returnType, nextType));
            }
        }
        function getPropertyNameForKnownSymbolName(symbolName) {
            var ctorType = getGlobalESSymbolConstructorSymbol(/*reportErrors*/ false);
            var uniqueType = ctorType && getTypeOfPropertyOfType(getTypeOfSymbol(ctorType), ts.escapeLeadingUnderscores(symbolName));