Now either all or none of equals/hashCode/canEqual is generated. Fixes issue 240.

test/transform/resource/before/EqualsAndHashCodeWithExistingMethods.java

@@ -0,0 +1,26 @@
+@lombok.EqualsAndHashCode
+class EqualsAndHashCodeWithExistingMethods {
+	int x;
+	
+	public int hashCode() {
+		return 42;
+	}
+}
+
+@lombok.EqualsAndHashCode
+final class EqualsAndHashCodeWithExistingMethods2 {
+	int x;
+	
+	public boolean equals(Object other) {
+		return false;
+	}
+}
+
+@lombok.EqualsAndHashCode(callSuper=true)
+final class EqualsAndHashCodeWithExistingMethods3 extends EqualsAndHashCodeWithExistingMethods {
+	int x;
+	
+	public boolean canEqual(Object other) {
+		return true;
+	}
+}