– enable new options InsertNewlineAtEOF and RemoveSemicolon
– reformat the code accordingly

– Harmonize location output for warnings so that it is the same as for
  errors (i.e. more explicit about what is the line number and the column number)
– Remove obsolete stuff for delayed error messages that should have been
  removed in db1f6c29.
– Factorize some printing logic with ParsingDriver::undeclared_model_variable_error().
– Simplify WarningConsolidation class

Automatically detected using clang-tidy with bugprone-reserved-identifier
check.

By the way, homogeneize the define identifiers in relation to camel case
convention.

A function defined entirely inside a class/struct/union definition is
implicitly an inline function.

The syntax makes clearer the distinction between a function call and an
initialization. Also, it prevents bugs due to implicit type conversions.

For a rationale, see http://www.sjbrown.co.uk/2004/05/01/always-use-explicit/

Performed using modernize-use-equals-default from clang-tidy.

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

 - at the end of the computation, don't display all preprocessor warnings but
   only their number
 - also display if there has been a MATLAB/Octave warning (counting their
   number does not seem feasible). Closes #181
 - add new "nowarn" option to disable all warnings. Closes #301