Use recovered method symbol

[datho7561]

Needed to use reflection to access the field containing the recovered symbol.

• Fixes "Remove argument", "Add parameter", "Qualify with enclosing type" quick fixes for the following snippet:

package io.github.datho7561;

public class MyCoolCodeActions {
	public void run(int i) {

	}
	public void foo() {
		new Runnable() {
			void run() {
				run(1);
			}
		}
	}
}

• Should fix UnresolvedMethodsQuickFixTest.testMethodInAnonymousCovering1 in jdt-ls test suite

[datho7561]

I think it will fix all UnresolvedMethodsQuickFixTest.testMethodInAnonymousCovering*