I'd like to make an inspection to see if a string following a specific
pattern is a key in the project .properties files.
(for example if you have someMethod("project.str1"), and there is no
project.str1=foo in any .properties files, this inspection would notify
How can I see if a string is a key in the project .properties files?
I saw there's a PropertiesComponent and it has a
isValueSet(java.lang.String name) method. Is it related to my problem,
or something completely unrelated?