tests added

compiler/testData/codegen/bytecodeText/boxingOptimization/casts.kt

@@ -0,0 +1,22 @@
+
+inline fun <R, T> foo(x : R?, block : (R?) -> T) : T {
+    return block(x)
+}
+
+fun bar() {
+    foo(1) { x -> x!!.toLong() }
+    foo(1) { x -> x!!.toShort() }
+    foo(1L) { x -> x!!.toByte() }
+    foo(1L) { x -> x!!.toShort() }
+    foo('a') { x -> x!!.toDouble() }
+    foo(1.0) { x -> x!!.toByte() }
+}
+
+// 0 valueOf
+// 0 Value\s\(\)
+// 1 I2L
+// 2 L2I
+// 2 I2S
+// 2 I2B
+// 1 I2D
+// 1 D2I