Closes: #127

By the way, also improve the terminology used in variable and method names: a
“constraint” is something like “ZLB” or “INEG”, a regime is a state in which
constraints are either binding or relaxed.

Really closes: #103

Ref. dynare#1918

In particular, emit more explicit error messages in the presence of
inconsistencies.

Closes: #103

Closes: #124

Remove globals from extended path

See merge request Dynare/preprocessor!99

Add steady_state_model_present field to modfile.json

See merge request Dynare/preprocessor!100

The old name is still accepted, but will trigger a deprecation warning.

Ref. !96

Ref. !97

Ref. !98

dr_block has been removed

Automatically detected by clang-tidy using
performance-inefficient-string-concatenation check.

Several of the detected cases are left unattended, because the syntax is more
elegant as it is, and they are not performance-critical.

Automatically detected by clang-tidy using
performance-inefficient-vector-operation check.

Automatically detected by clang-tidy with performance-move-const-arg check.

Do not make the modification for Tokenizer::location type, since we have no
guarantee that the type will remain trivially-copyable in the future.

Automatically detected by clang-tidy using the performance-faster-string-find
check.