– New “heterogeneity_dimension” statement
– New option “heterogeneity” to “var”, “varexo”, “parameters”, “model” and
  “shocks” statements
– New “SUM()” operator in “model” block

Closes: #107

In particular, use this feature in many loops which feature a special treatment
for the first iteration, using a boolean variable (replacing iterator
manipulation). By the way, also use std::exchange() to simultaneously test the
value of this variable and update it.

For symbol lists (such as those given to “var” or “stoch_simul”), return a
semantic value at the Bison level, rather than building the list through a
temporary object in ParsingDriver. This allows various simplifications, and
leads to a more functional code.

By the way, homogeneize the naming of the various flavours of symbol lists in
the Bison file (with TeX names, partitioning, or with a wildcard).

dynare#1355

dynare#1355

Use ReplaceShorterLiterals option to enforce replacement of all strings.

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

Performed using modernize-use-auto from clang-tidy.

https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-auto.html

git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1878 ac1d8469-bf42-47a9-8791-bf33cf982152

* renamed TmpSymbolTable to SymbolList (with some clean up by the way)
* removed unused mechanism of alternative variable names in tmp_var_list
* OptionsList: fixed memory leak and bug in clear()


git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1785 ac1d8469-bf42-47a9-8791-bf33cf982152

git-svn-id: https://www.dynare.org/svn/dynare/dynare_v4@1686 ac1d8469-bf42-47a9-8791-bf33cf982152