Function createUseStrictPrologue

test/fixtures/snapshot/typescript.js:27006–27008

()

            return ts.isStringLiteral(node.expression) && node.expression.text === "use strict";
        }
        function createUseStrictPrologue() {
            return ts.startOnNewLine(createExpressionStatement(createStringLiteral("use strict")));
        }
        /**
         * Copies only the standard (string-expression) prologue-directives into the target statement-array.
         * @param source origin statements array