docs: function parseSimpleUnaryExpression() {
              switch (token()) {
                  case 35 /* PlusToken */:
                  case 36 /* MinusToken */:
                  case 50 /* TildeToken */:
                  case 49 /* ExclamationToken */:
                      return parsePrefixUnaryExpression();
                  case 78 /* DeleteKeyword */:
                      return parseDeleteExpression();
                  case 101 /* TypeOfKeyword */:
                      return parseTypeOfExpression();
                  case 103 /* VoidKeyword */:
                      return parseVoidExpression();
                  case 25 /* LessThanToken */:
                      // This is modified UnaryExpression grammar in TypeScript
                      //  UnaryExpression (modified):
                      //      < type > UnaryExpression
                      return parseTypeAssertion();
                  case 119 /* AwaitKeyword */:
                      if (isAwaitExpression()) {
                          return parseAwaitExpression();
                      }
                  default:
                      return parseIncrementExpression();
              }
          }