* Renamed test that referenced "expressions" instead of "statements"
* Changed exception message to reference "statements" instead of "expressions"

@@ -0,0 +43,4 @@
+	#[Override]
+	public function offsetSet(mixed $offset, mixed $value): void {
+		if ($offset === null) {
+			throw new LogicException('Expected offset to be a non-empty string');

@@ -0,0 +13,4 @@
+ * @author C. Fahner
+ * @copyright Slendium 2026
+ */
+final class MutableDocumentTest extends TestCase {

@@ -0,0 +21,4 @@
+		public FieldPath $field,
+
+		/** @since 1.0 */
+		public float|int $amount = 1,

@@ -0,0 +21,4 @@
+		public FieldPath $field,
+
+		/** @since 1.0 */
+		public float|int $amount = 1,

@@ -0,0 +90,4 @@
+
+		$result = \count($sut);
+		$iterations = 0;
+		foreach ($sut as $_) {

@@ -0,0 +16,4 @@
+ */
+final class VisitorTest extends TestCase {
+
+	public function test_interface_shouldCoverAllExprs(): void {

@@ -0,0 +29,4 @@
+			foreach ($method->getParameters() as $i => $parameter) {
+				$type = $parameter->getType();
+				$this->assertInstanceOf(ReflectionNamedType::class, $type);
+				$this->assertTrue(isset($variants[$type->getName()]), "Visitor interface contains method for non-existant expression $type");