[IR] Normalize temp var names in Kotlin-like dump

^KT-61983 Fixed

compiler/testData/ir/irText/declarations/contextReceivers/compoundAssignmentOperators.kt.txt

@@ -33,9 +33,9 @@ data class Result {
     when {
       other !is Result -> return false
     }
-    val tmp0_other_with_cast: Result = other as Result
+    val tmp_0: Result = other as Result
     when {
-      EQEQ(arg0 = <this>.#i, arg1 = tmp0_other_with_cast.#i).not() -> return false
+      EQEQ(arg0 = <this>.#i, arg1 = tmp_0.#i).not() -> return false
     }
     return true
   }
@@ -59,8 +59,8 @@ operator fun Result.plusAssign($context_receiver_0: Int, other: Result) {
     <set-operationScore>(<set-?> = <get-operationScore>().plus(other = $context_receiver_0))
   }
   { // BLOCK
-    val tmp0_this: Result = <this>
-    tmp0_this.<set-i>(<set-?> = tmp0_this.<get-i>().plus(other = other.<get-i>()))
+    val tmp_1: Result = <this>
+    tmp_1.<set-i>(<set-?> = tmp_1.<get-i>().plus(other = other.<get-i>()))
   }
 }
 
@@ -76,8 +76,8 @@ operator fun Result.minusAssign($context_receiver_0: Int, other: Result) {
     <set-operationScore>(<set-?> = <get-operationScore>().plus(other = $context_receiver_0))
   }
   { // BLOCK
-    val tmp0_this: Result = <this>
-    tmp0_this.<set-i>(<set-?> = tmp0_this.<get-i>().minus(other = other.<get-i>()))
+    val tmp_2: Result = <this>
+    tmp_2.<set-i>(<set-?> = tmp_2.<get-i>().minus(other = other.<get-i>()))
   }
 }
 
@@ -93,8 +93,8 @@ operator fun Result.timesAssign($context_receiver_0: Int, other: Result) {
     <set-operationScore>(<set-?> = <get-operationScore>().plus(other = $context_receiver_0))
   }
   { // BLOCK
-    val tmp0_this: Result = <this>
-    tmp0_this.<set-i>(<set-?> = tmp0_this.<get-i>().times(other = other.<get-i>()))
+    val tmp_3: Result = <this>
+    tmp_3.<set-i>(<set-?> = tmp_3.<get-i>().times(other = other.<get-i>()))
   }
 }
 
@@ -110,8 +110,8 @@ operator fun Result.divAssign($context_receiver_0: Int, other: Result) {
     <set-operationScore>(<set-?> = <get-operationScore>().plus(other = $context_receiver_0))
   }
   { // BLOCK
-    val tmp0_this: Result = <this>
-    tmp0_this.<set-i>(<set-?> = tmp0_this.<get-i>().div(other = other.<get-i>()))
+    val tmp_4: Result = <this>
+    tmp_4.<set-i>(<set-?> = tmp_4.<get-i>().div(other = other.<get-i>()))
   }
 }