[test] Move irJsText tests to irText directory

So that all irText tests could be found in one place

compiler/testData/ir/irText/js/dynamic/dynamicBinaryRelationalOperator.kt.txt

@@ -0,0 +1,16 @@
+fun testLess(d: dynamic): Boolean {
+  return d < 2
+}
+
+fun testLessOrEqual(d: dynamic): Boolean {
+  return d <= 2
+}
+
+fun testGreater(d: dynamic): Boolean {
+  return d > 2
+}
+
+fun testGreaterOrEqual(d: dynamic): Boolean {
+  return d >= 2
+}
+