[Retrace] Fix test expectation after change to line 0

Fixed: b/255705077
Change-Id: I1b8d617530b33fa5f21a05e99ce5663e4c6ea000
diff --git a/src/test/java/com/android/tools/r8/retrace/StackTraceWithPcAndNoLineTableTestRunner.java b/src/test/java/com/android/tools/r8/retrace/StackTraceWithPcAndNoLineTableTestRunner.java
index a89c8a4..8258c8b 100644
--- a/src/test/java/com/android/tools/r8/retrace/StackTraceWithPcAndNoLineTableTestRunner.java
+++ b/src/test/java/com/android/tools/r8/retrace/StackTraceWithPcAndNoLineTableTestRunner.java
@@ -88,8 +88,7 @@
                     b -> b.setLineNumber(10),
                     b -> {
                       if (parameters.isDexRuntime()) {
-                        // TODO(b/255705077): Should not have position 0.
-                        b.setLineNumber(0);
+                        b.setLineNumber(-1);
                       }
                     })
                 .build())
@@ -103,8 +102,7 @@
                     b -> b.setLineNumber(15),
                     b -> {
                       if (parameters.isDexRuntime()) {
-                        // TODO(b/255705077): Should not have position 0.
-                        b.setLineNumber(0);
+                        b.setLineNumber(-1);
                       }
                     })
                 .build())