Function clearState

test/fixtures/snapshot/typescript.js:31657–31675

()

            scanner.setLanguageVariant(languageVariant);
        }
        function clearState() {
            // Clear out the text the scanner is pointing at, so it doesn't keep anything alive unnecessarily.
            scanner.clearCommentDirectives();
            scanner.setText("");
            scanner.setOnError(undefined);
            // Clear any data.  We don't want to accidentally hold onto it for too long.
            sourceText = undefined;
            languageVersion = undefined;
            syntaxCursor = undefined;
            scriptKind = undefined;
            languageVariant = undefined;
            sourceFlags = 0;
            parseDiagnostics = undefined;
            jsDocDiagnostics = undefined;
            parsingContext = 0;
            identifiers = undefined;
            notParenthesizedArrow = undefined;
            topLevel = true;
        }
        function parseSourceFileWorker(languageVersion, setParentNodes, scriptKind, setExternalModuleIndicator) {
            var isDeclarationFile = isDeclarationFileName(fileName);
            if (isDeclarationFile) {