Merge remote-tracking branch

'origin/GP-1451_Dan_syncSelToggle--SQUASHED'

 Conflicts:
	Ghidra/Debug/Debugger/src/test/java/ghidra/app/plugin/core/debug/gui/listing/DebuggerListingProviderTest.java

Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/address/AddressCollectors.java

@@ -0,0 +1,63 @@
+/* ###
+ * IP: GHIDRA
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package ghidra.program.model.address;
+
+import java.util.Set;
+import java.util.function.*;
+import java.util.stream.Collector;
+
+/**
+ * Utilities for using addresses and ranges in streams
+ */
+public class AddressCollectors {
+
+	/**
+	 * Union a stream of address ranges into a single mutable address set
+	 * 
+	 * @return the address set
+	 */
+	public static Collector<AddressRange, AddressSet, AddressSet> toAddressSet() {
+		return new Collector<>() {
+			@Override
+			public Supplier<AddressSet> supplier() {
+				return AddressSet::new;
+			}
+
+			@Override
+			public BiConsumer<AddressSet, AddressRange> accumulator() {
+				return AddressSet::add;
+			}
+
+			@Override
+			public BinaryOperator<AddressSet> combiner() {
+				return (s1, s2) -> {
+					s1.add(s2);
+					return s1;
+				};
+			}
+
+			@Override
+			public Function<AddressSet, AddressSet> finisher() {
+				return Function.identity();
+			}
+
+			@Override
+			public Set<Characteristics> characteristics() {
+				return Set.of();
+			}
+		};
+	}
+}