Add test for semantic highlighting end marker of local object

Author: natsukagami

presentation-compiler/test/dotty/tools/pc/tests/tokens/SemanticTokensSuite.scala

@@ -435,4 +435,13 @@ class SemanticTokensSuite extends BaseSemanticTokensSuite:
         |  <<usage>>/*method*/[<<Option>>/*class,abstract*/[<<Int>>/*class,abstract*/]](<<_>>/*parameter,readonly*/.<<typeArg>>/*method*/[<<Some>>/*class*/[<<Int>>/*class,abstract*/]].<<value>>/*variable,readonly*/.<<inferredTypeArg>>/*method*/[<<String>>/*type*/]("str"))
         |}
         |""".stripMargin
-    )
+    )
+
+  @Test def `local-object-with-end-i7246` =
+   check(
+      """|def <<bar>>/*method,definition*/ =
+         |  object <<foo>>/*class*/:
+         |    def <<aaa>>/*method,definition*/ = <<???>>/*method*/
+         |  end <<foo>>/*class,definition*/
+         |""".stripMargin
+   )