[EGL] Fix some parse problems reporting incorrect position

[Arkaedan]

Fixes #166

The issue was caused by the EglParseProblem assuming that the preprocessing had been done however some parse problems can happen before preprocessing and in those cases preprocessing does not run.

[kolovos]

Many thanks for investigating! I'm wondering whether this can be further simplified by undoing the changes to Preprocessor and changing

if (!preprocessor.hasRun()) {
	return parseProblems;
}

to

if (!eglParser.getParseProblems().isEmpty()) {
	return parseProblems;
}

in EglModule?

[Arkaedan]

Many thanks for investigating! I'm wondering whether this can be further simplified by undoing the changes to Preprocessor and changing

if (!preprocessor.hasRun()) {
	return parseProblems;
}

to

if (!eglParser.getParseProblems().isEmpty()) {
	return parseProblems;
}

in EglModule?

Yep you're right. Thanks!