Rename mergedInto to mergeTarget for clarity

Transition might not actually be merged when this is set as the name might imply

Test: atest FlickerLibTest
Bug: 308420859
Change-Id: Ib5f1f3bdd54fac94018d09d0613d5f6338cf2562
diff --git a/libraries/flicker/utils/src/android/tools/common/traces/wm/ShellTransitionData.kt b/libraries/flicker/utils/src/android/tools/common/traces/wm/ShellTransitionData.kt
index 7f98d64..6fb650b 100644
--- a/libraries/flicker/utils/src/android/tools/common/traces/wm/ShellTransitionData.kt
+++ b/libraries/flicker/utils/src/android/tools/common/traces/wm/ShellTransitionData.kt
@@ -26,7 +26,7 @@
     val mergeTime: Timestamp? = null,
     val abortTime: Timestamp? = null,
     val handler: String? = null,
-    val mergedInto: Int? = null,
+    val mergeTarget: Int? = null,
 ) {
     init {
         // We should never have empty timestamps, those should be passed as null
@@ -43,6 +43,6 @@
             shellData.mergeTime ?: mergeTime,
             shellData.abortTime ?: abortTime,
             shellData.handler ?: handler,
-            shellData.mergedInto ?: mergedInto,
+            shellData.mergeTarget ?: mergeTarget,
         )
 }
diff --git a/libraries/flicker/utils/src/android/tools/common/traces/wm/Transition.kt b/libraries/flicker/utils/src/android/tools/common/traces/wm/Transition.kt
index 0cbfa05..fca86cf 100644
--- a/libraries/flicker/utils/src/android/tools/common/traces/wm/Transition.kt
+++ b/libraries/flicker/utils/src/android/tools/common/traces/wm/Transition.kt
@@ -83,7 +83,7 @@
 
     @JsName("changes") val changes: Array<TransitionChange> = wmData.changes ?: emptyArray()
 
-    @JsName("mergedInto") val mergedInto = shellData.mergedInto
+    @JsName("mergeTarget") val mergedInto = shellData.mergeTarget
 
     @JsName("handler") val handler = shellData.handler
 
diff --git a/libraries/flicker/utils/src/android/tools/device/traces/parsers/wm/ShellTransitionTraceParser.kt b/libraries/flicker/utils/src/android/tools/device/traces/parsers/wm/ShellTransitionTraceParser.kt
index 0b267e5..87863aa 100644
--- a/libraries/flicker/utils/src/android/tools/device/traces/parsers/wm/ShellTransitionTraceParser.kt
+++ b/libraries/flicker/utils/src/android/tools/device/traces/parsers/wm/ShellTransitionTraceParser.kt
@@ -120,7 +120,7 @@
                             Timestamps.from(elapsedNanos = entry.abortTimeNs)
                         },
                     handler = handlerMapping[entry.handler],
-                    mergedInto = if (entry.mergedInto == 0) null else entry.mergedInto
+                    mergeTarget = if (entry.mergeTarget == 0) null else entry.mergeTarget
                 )
         )
     }
diff --git a/libraries/flicker/utils/test/src/android/tools/common/traces/wm/TransitionTest.kt b/libraries/flicker/utils/test/src/android/tools/common/traces/wm/TransitionTest.kt
index e4ca552..cac368b 100644
--- a/libraries/flicker/utils/test/src/android/tools/common/traces/wm/TransitionTest.kt
+++ b/libraries/flicker/utils/test/src/android/tools/common/traces/wm/TransitionTest.kt
@@ -94,7 +94,7 @@
                         mergeTime = Timestamps.from(23),
                         abortTime = Timestamps.from(24),
                         handler = "Handler1",
-                        mergedInto = 1,
+                        mergeTarget = 1,
                     )
             )
 
@@ -119,7 +119,7 @@
                         mergeTime = Timestamps.from(230),
                         abortTime = Timestamps.from(240),
                         handler = "Handler2",
-                        mergedInto = 10,
+                        mergeTarget = 10,
                     )
             )