[deps] Updated eclipse deps to 3.9 tree. This also enables testing java7 features on ecj.

[Log] updated naming for @Log (topic= instead of mchmulder's 'value').

test/transform/resource/before/LoggerLog4j2.java

@@ -8,6 +8,6 @@ class LoggerLog4j2 {
 class LoggerLog4j2WithImport {
 }
 
-@Log4j2("DifferentName")
+@Log4j2(topic="DifferentName")
 class LoggerLog4j2WithDifferentName {
 }