Correctly detect Modelica or MetaModelica language from '.mo' files.

[AnHeuermann]

Description

When opening .mo files correctly identify if it is a Modelica or a MetaModelica file. Default to Modelica if it can't be decided.

Examples

model M
end M;

Detect modelica since MetaModelica doesn't has keyword model.

uniontype Real
end Real;

Detect metamodelica since uniontype is not a Modelica keyword.