add tests to ensure onlyExplicitlyIncluded means nothing if no fields are annotated. Fixes #1772

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

@@ -0,0 +1,23 @@
+@lombok.EqualsAndHashCode(onlyExplicitlyIncluded = true) class EqualsAndHashCodeExplicitInclude {
+  int x;
+  EqualsAndHashCodeExplicitInclude() {
+    super();
+  }
+  public @java.lang.Override @java.lang.SuppressWarnings("all") boolean equals(final java.lang.Object o) {
+    if ((o == this))
+        return true;
+    if ((! (o instanceof EqualsAndHashCodeExplicitInclude)))
+        return false;
+    final EqualsAndHashCodeExplicitInclude other = (EqualsAndHashCodeExplicitInclude) o;
+    if ((! other.canEqual((java.lang.Object) this)))
+        return false;
+    return true;
+  }
+  protected @java.lang.SuppressWarnings("all") boolean canEqual(final java.lang.Object other) {
+    return (other instanceof EqualsAndHashCodeExplicitInclude);
+  }
+  public @java.lang.Override @java.lang.SuppressWarnings("all") int hashCode() {
+    int result = 1;
+    return result;
+  }
+}