skip attribute for line number - confuses mac/linux.

tests/src/org/aspectj/systemtest/ajc152/SynchronizationTransformTests.java

@@ -259,7 +259,8 @@ public class SynchronizationTransformTests extends XMLBasedAjcTestCase {
 			String[] lines = ls.getLines();
 			for (int i = 0; i < lines.length; i++) {
 				String existingLine = lines[i];
-				if (!fileContents[i].equals(existingLine)) {
+				if (fileContents[i].indexOf("MethodDeclarationLineNumber")==-1 && 
+					!fileContents[i].equals(existingLine)) {
 					dump("File contents:",fileContents);
 					dump("Actual:",lines);
 					fail("\nDifference in method "+m.getName()+" on line "+i+" between the expected:\n"+fileContents[i]+