Introduce 'reified' instead of 'erased'

compiler/testData/codegen/regressions/kt1199.kt

@@ -1,4 +1,4 @@
-fun <erased T : Any> T?.iterator() = object {
+fun <T : Any> T?.iterator() = object {
     var hasNext = this@iterator != null
       private set
 

compiler/testData/codegen/regressions/kt602.jet

@@ -1 +1,2 @@
 fun box() = if(arrayOfNulls<Int>(10) is Array<java.lang.Integer>) "OK" else "fail"
+

compiler/testData/codegen/typeInfo/primitiveTypeInfo.jet

@@ -3,7 +3,7 @@ class Box<T>(t: T) {
 }
 
 fun isIntBox(box: Box<out Any?>): Boolean {
-    return box is Box<Int>;
+    return box is Box<*>;
 }