268827: ask for the JDT project state

tests/src/org/aspectj/systemtest/incremental/tools/MultiProjTestOutputLocationManager.java

@@ -106,4 +106,9 @@ public class MultiProjTestOutputLocationManager implements IOutputLocationManage
 	public void reportFileRemove(String outputfile, int filetype) {
 	}
 
+	public int discoverChangesSince(File dir, long buildtime) {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
 }

tests/src/org/aspectj/systemtest/incremental/tools/OutputLocationManagerTests.java

@@ -143,6 +143,11 @@ public class OutputLocationManagerTests extends AbstractMultiProjectIncrementalA
 		public String getSourceFolderForFile(File sourceFile) {
 			return null;
 		}
+
+		public int discoverChangesSince(File dir, long buildtime) {
+			// TODO Auto-generated method stub
+			return 0;
+		}
 	}
 
 	public void reportFileWrite(String outputfile, int filetype) {