init research

dataframe/plugins/expressions-converter/testData/box/test.kt

@@ -0,0 +1,21 @@
+package org.jetbrains.kotlinx.dataframe.explainer
+
+fun print(any: Any) {}
+
+fun printM(pair: Pair<String, Any>) {
+    val (text, obj) = pair
+    println("# ${text}: $obj")
+}
+
+fun ir() {
+    val df = Any()
+    printM("Any()" to df)
+}
+
+fun box(): String {
+    val df = Any()
+    val df1 = 1 + 2
+    print(df)
+    print(df1)
+    return "OK"
+}