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This reverts commit fbc42b19, which is
incorrect for the currently used version of Bison (in stretch).
Besides, even if the patch seems to work with recent versions of
Bison, it introduces hard to predict and probably very unpleasant
properties (this patch allows to use the `expectation` word anywhere,
this would be a problem if the user choose to name a variable or
parameter as `expectation`).

Adapt the code accordingly.

Backward incompatible change: the temporary terms for 3rd order are now stored
in "temporary_terms_third_derivative" (without the final "s"; same for external
functions), for consistency with the name of the slot for the derivatives
themselves ("third_derivative").

Ref dynare#217

Does not work for Julia mode, neither with block and bytecode.

Note: in DLL mode, the number of temporary terms in no longer given in the
‘ntt’ symbol; it must be computed using ‘M_.dynamic_tmp_nbr’.

Ref dynare#217

add JSON output for plot_shock_decomposition, realtime_shock_decomposition, and initial_condition_decomposition

macroprocessor: fix bug: when macro variables were defined on the command line the resulting .mod file had newlines inserted at the top, resulting in incorrect line numbers when errors were encountered

In other words, allow newlines before these options

Before this commit, a dynare call such as
```
dynare <<mod file>> -Db=“A” -Da=@{b}
```
would not expand the value of `b` in `a` whereas
```
dynare <<mod file>> -Da=“A” -Db=@{a}
```
would expand the value of `a` into `b` because the arguments were stored in a map which printed the `@#define` statements in the .mod file in alphabetic order.

Use ReplaceShorterLiterals option to enforce replacement of all strings.

https://clang.llvm.org/extra/clang-tidy/checks/modernize-raw-string-literal.html

By the way, fix bug in detection of duplicate elements.