Wither support + tests (javac only; ecj tests are currently set to ignore).

test/transform/resource/before/SetterAlreadyExists.java

@@ -3,43 +3,51 @@ class Setter1 {
 	void setFoo(boolean foo) {
 	}
 }
+
 class Setter2 {
 	@lombok.Setter boolean foo;
 	void setFoo(String foo) {
 	}
 }
+
 class Setter3 {
 	@lombok.Setter String foo;
 	void setFoo(boolean foo) {
 	}
 }
+
 class Setter4 {
 	@lombok.Setter String foo;
 	void setFoo(String foo) {
 	}
 }
+
 class Setter5 {
 	@lombok.Setter String foo;
 	void setFoo() {
 	}
 }
+
 class Setter6 {
 	@lombok.Setter String foo;
 	void setFoo(String foo, int x) {
 	}
 }
+
 class Setter7 {
 	@lombok.Setter String foo;
 	void setFoo(String foo, Object... x) {
 	}
 }
+
 class Setter8 {
 	@lombok.Setter boolean isFoo;
 	void setIsFoo(boolean foo) {
 	}
 }
+
 class Setter9 {
 	@lombok.Setter boolean isFoo;
 	void setFoo(boolean foo) {
 	}
-}
+}