Async iteration should only fetch the next method once and add feature flag
https://bugs.webkit.org/show_bug.cgi?id=179451
Reviewed by Geoffrey Garen.
Source/JavaScriptCore:
Add feature flag for Async iteration. Also, change async iteration to match
the expected behavior of the proposal.
- Configurations/FeatureDefines.xcconfig:
- builtins/AsyncFromSyncIteratorPrototype.js:
(globalPrivate.createAsyncFromSyncIterator):
(globalPrivate.AsyncFromSyncIteratorConstructor):
- builtins/BuiltinNames.h:
- bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::emitGetAsyncIterator):
Source/WebCore:
Add feature flag for Async iteration.
- Configurations/FeatureDefines.xcconfig:
Source/WebCore/PAL:
Add feature flag for Async iteration.
- Configurations/FeatureDefines.xcconfig:
Source/WebKit:
Add feature flag for Async iteration.
- Configurations/FeatureDefines.xcconfig:
Source/WebKitLegacy/mac:
Add feature flag for Async iteration.
- Configurations/FeatureDefines.xcconfig:
Tools:
Add feature flag for Async iteration.
- TestWebKitAPI/Configurations/FeatureDefines.xcconfig:
