[fixes #1836] superbuilder didn’t play ball with field prefixes, at least in javac.

test/transform/resource/after-delombok/SuperBuilderWithPrefixes.java

@@ -0,0 +1,87 @@
+class SuperBuilderWithPrefixes {
+	int mField;
+	int xOtherField;
+	java.util.List<String> mItems;
+	@java.lang.SuppressWarnings("all")
+	public static abstract class SuperBuilderWithPrefixesBuilder<C extends SuperBuilderWithPrefixes, B extends SuperBuilderWithPrefixesBuilder<C, B>> {
+		@java.lang.SuppressWarnings("all")
+		private int field;
+		@java.lang.SuppressWarnings("all")
+		private int otherField;
+		@java.lang.SuppressWarnings("all")
+		private java.util.ArrayList<String> items;
+		@java.lang.SuppressWarnings("all")
+		protected abstract B self();
+		@java.lang.SuppressWarnings("all")
+		public abstract C build();
+		@java.lang.SuppressWarnings("all")
+		public B field(final int field) {
+			this.field = field;
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B otherField(final int otherField) {
+			this.otherField = otherField;
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B item(final String item) {
+			if (this.items == null) this.items = new java.util.ArrayList<String>();
+			this.items.add(item);
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B items(final java.util.Collection<? extends String> items) {
+			if (this.items == null) this.items = new java.util.ArrayList<String>();
+			this.items.addAll(items);
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B clearItems() {
+			if (this.items != null) this.items.clear();
+			return self();
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		public java.lang.String toString() {
+			return "SuperBuilderWithPrefixes.SuperBuilderWithPrefixesBuilder(field=" + this.field + ", otherField=" + this.otherField + ", items=" + this.items + ")";
+		}
+	}
+	@java.lang.SuppressWarnings("all")
+	private static final class SuperBuilderWithPrefixesBuilderImpl extends SuperBuilderWithPrefixesBuilder<SuperBuilderWithPrefixes, SuperBuilderWithPrefixesBuilderImpl> {
+		@java.lang.SuppressWarnings("all")
+		private SuperBuilderWithPrefixesBuilderImpl() {
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		protected SuperBuilderWithPrefixesBuilderImpl self() {
+			return this;
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		public SuperBuilderWithPrefixes build() {
+			return new SuperBuilderWithPrefixes(this);
+		}
+	}
+	@java.lang.SuppressWarnings("all")
+	protected SuperBuilderWithPrefixes(final SuperBuilderWithPrefixesBuilder<?, ?> b) {
+		this.mField = b.field;
+		this.xOtherField = b.otherField;
+		java.util.List<String> items;
+		switch (b.items == null ? 0 : b.items.size()) {
+		case 0: 
+			items = java.util.Collections.emptyList();
+			break;
+		case 1: 
+			items = java.util.Collections.singletonList(b.items.get(0));
+			break;
+		default: 
+			items = java.util.Collections.unmodifiableList(new java.util.ArrayList<String>(b.items));
+		}
+		this.mItems = items;
+	}
+	@java.lang.SuppressWarnings("all")
+	public static SuperBuilderWithPrefixesBuilder<?, ?> builder() {
+		return new SuperBuilderWithPrefixesBuilderImpl();
+	}
+}