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

^KT-61983 Fixed

compiler/testData/ir/irText/expressions/arrayAugmentedAssignment1.fir.kt.txt

@@ -22,24 +22,24 @@ class C {
 fun testVariable() {
   var x: IntArray = foo()
   { // BLOCK
-    val <array>: IntArray = x
-    val <index_0>: Int = 0
-    <array>.set(index = <index_0>, value = <array>.get(index = <index_0>).plus(other = 1))
+    val tmp_0: IntArray = x
+    val tmp_1: Int = 0
+    tmp_0.set(index = tmp_1, value = tmp_0.get(index = tmp_1).plus(other = 1))
   }
 }
 
 fun testCall() {
   { // BLOCK
-    val <array>: IntArray = foo()
-    val <index_0>: Int = bar()
-    <array>.set(index = <index_0>, value = <array>.get(index = <index_0>).times(other = 2))
+    val tmp_2: IntArray = foo()
+    val tmp_3: Int = bar()
+    tmp_2.set(index = tmp_3, value = tmp_2.get(index = tmp_3).times(other = 2))
   }
 }
 
 fun testMember(c: C) {
-  val <array>: IntArray = c.<get-x>()
-  val <index_0>: Int = 0
-  val <unary>: Int = <array>.get(index = <index_0>)
-  <array>.set(index = <index_0>, value = <unary>.inc())
-  <unary> /*~> Unit */
+  val tmp_4: IntArray = c.<get-x>()
+  val tmp_5: Int = 0
+  val tmp_6: Int = tmp_4.get(index = tmp_5)
+  tmp_4.set(index = tmp_5, value = tmp_6.inc())
+  tmp_6 /*~> Unit */
 }