Test framework for inline

compiler/testData/codegen/boxInline/iinc/1.kt

@@ -0,0 +1,13 @@
+fun test1(): Int {
+    var s = 0;
+    2.times2 {
+        s++
+    }
+    return s;
+}
+
+fun box(): String {
+    if (test1() != 2) return "test1: ${test1()}"
+
+    return "OK"
+}

compiler/testData/codegen/boxInline/iinc/2.kt

@@ -0,0 +1,7 @@
+public inline fun Int.times2(body : () -> Unit) {
+    var count = this;
+    while (count > 0) {
+        body()
+        count--
+    }
+}