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

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

@@ -0,0 +1,33 @@
+@lombok.Data @lombok.ToString(doNotUseGetters = true) class DataExtended {
+  int x;
+  public @java.lang.SuppressWarnings("all") DataExtended() {
+    super();
+  }
+  public @java.lang.SuppressWarnings("all") int getX() {
+    return this.x;
+  }
+  public @java.lang.SuppressWarnings("all") void setX(final int x) {
+    this.x = x;
+  }
+  public @java.lang.Override @java.lang.SuppressWarnings("all") boolean equals(final java.lang.Object o) {
+    if ((o == this))
+        return true;
+    if ((o == null))
+        return false;
+    if ((o.getClass() != this.getClass()))
+        return false;
+    final DataExtended other = (DataExtended) o;
+    if ((this.getX() != other.getX()))
+        return false;
+    return true;
+  }
+  public @java.lang.Override @java.lang.SuppressWarnings("all") int hashCode() {
+    final int PRIME = 31;
+    int result = 1;
+    result = ((result * PRIME) + this.getX());
+    return result;
+  }
+  public @java.lang.Override @java.lang.SuppressWarnings("all") java.lang.String toString() {
+    return (("DataExtended(x=" + this.x) + ")");
+  }
+}