Add quickfix for non accessible references

[fbricon]

Handle the following cases in QuickFixProcessor:

case IProblem.StaticMethodRequested:
case IProblem.NonStaticFieldFromStaticInvocation:
case IProblem.InstanceMethodDuringConstructorInvocation:
case IProblem.InstanceFieldDuringConstructorInvocation:
    ModifierCorrectionSubProcessor.addNonAccessibleReferenceProposal(context, problem, proposals, 
    ModifierCorrectionSubProcessor.TO_STATIC, IProposalRelevance.CHANGE_MODIFIER_TO_STATIC);

[fbricon]

@NikolasKomonen can you investigate if this one is doable, or if it requires jdt.ui -> jdt.core refactoring?

[NikolasKomonen]

@fbricon No refactoring was needed, I wasn't able to figure out how to trigger the quick fixes for:

case IProblem.InstanceMethodDuringConstructorInvocation:
case IProblem.InstanceFieldDuringConstructorInvocation:

but the other 2 work, and are tested.

[fbricon]

@snjeza any pointers for the 2 missing cases? Is it related to enabling some more warnings?

[snjeza]

case IProblem.InstanceMethodDuringConstructorInvocation:
case IProblem.InstanceFieldDuringConstructorInvocation:

@NikolasKomonen you can try the following:

public class Test {
	int i;
	Test () {
		this(i);
	}
	Test (int x) {
	}
	Test (long x) {
	    this(test());
	}

	int test() {
		return 0;
	}
}

Both quick fixes work. You need to create tests.