[fixes #3370] Support Helper in method

test/transform/resource/before/HelperInInitializationBlock.java

@@ -0,0 +1,22 @@
+import lombok.experimental.Helper;
+
+public class HelperInInitializationBlock {
+	{
+		final int z = 5;
+		if (Boolean.TRUE) {
+			@Helper class H1 {
+				void foo(int x) {
+					System.out.println("Hello, " + (x + z));
+				}
+			}
+			
+			foo(10);
+			
+			@Helper class H2 {
+				void bar() {
+					foo(12);
+				}
+			}
+		}
+	}
+}