Added tests for ecj, fixed a few minor bugs that came out of that.

test/transform/resource/after-ecj/SneakyThrowsPlain.java

@@ -0,0 +1,24 @@
+import lombok.SneakyThrows;
+class SneakyThrowsPlain {
+  SneakyThrowsPlain() {
+    super();
+  }
+  public @lombok.SneakyThrows void test() {
+    try 
+      {
+        System.out.println("test1");
+      }
+    catch (final java.lang.Throwable $ex)       {
+        throw lombok.Lombok.sneakyThrow($ex);
+      }
+  }
+  public @SneakyThrows void test2() {
+    try 
+      {
+        System.out.println("test2");
+      }
+    catch (final java.lang.Throwable $ex)       {
+        throw lombok.Lombok.sneakyThrow($ex);
+      }
+  }
+}