[java-completion] Complete statement: fix missing comma (IDEA-268441)

GitOrigin-RevId: 43c014680dc72429f349d667cc66c0920def1358

java/java-tests/testData/codeInsight/completeStatement/MissingComma.java

@@ -0,0 +1,13 @@
+import java.util.Arrays;
+import java.util.List;
+
+public class SomeClass {
+
+  public static List<String> someMethod() {
+    return Arrays.asList(
+      "first",
+      "second"<caret>
+      "third"
+    );
+  }
+}