[IR] dumpKotlinLike: add testdata for FIR tests

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

@@ -0,0 +1,24 @@
+interface IA {
+
+}
+
+interface IB {
+  abstract operator fun IA.compareTo(other: IA): Int
+
+}
+
+fun IB.test1(a1: IA, a2: IA): Boolean {
+  return greater(arg0 = (<this>, a1).compareTo(other = a2), arg1 = 0)
+}
+
+fun IB.test2(a1: IA, a2: IA): Boolean {
+  return greaterOrEqual(arg0 = (<this>, a1).compareTo(other = a2), arg1 = 0)
+}
+
+fun IB.test3(a1: IA, a2: IA): Boolean {
+  return less(arg0 = (<this>, a1).compareTo(other = a2), arg1 = 0)
+}
+
+fun IB.test4(a1: IA, a2: IA): Boolean {
+  return lessOrEqual(arg0 = (<this>, a1).compareTo(other = a2), arg1 = 0)
+}