Fix Position.equals() when it's a none-position.

Bug: 73156327
Change-Id: I211ef75766ebf1f640508f013aef0eab074bf53a
diff --git a/src/main/java/com/android/tools/r8/ir/code/Position.java b/src/main/java/com/android/tools/r8/ir/code/Position.java
index fa6532f..5c3e6d7 100644
--- a/src/main/java/com/android/tools/r8/ir/code/Position.java
+++ b/src/main/java/com/android/tools/r8/ir/code/Position.java
@@ -81,8 +81,7 @@
     }
     if (other instanceof Position) {
       Position o = (Position) other;
-      return !isNone()
-          && line == o.line
+      return line == o.line
           && file == o.file
           && method == o.method
           && Objects.equals(callerPosition, o.callerPosition);