optimization of toString for primitive types and "$expr"

- intrinsic toString for promitive types added to stdlib
- utility method added to CodegenUtil
- optimization logic added to generation of interpolating string

libraries/stdlib/src/kotlin/JLangJVM.kt

@@ -9,3 +9,58 @@ public val <out T> T.javaClass : Class<T>
     [Intrinsic("kotlin.javaClass.property")] get() = (this as java.lang.Object).getClass() as Class<T>
 
 [Intrinsic("kotlin.javaClass.function")] fun <out T> javaClass() : Class<T> = null as Class<T>
+
+
+/**
+ * A helper method for calling hashCode() on Kotlin objects
+ * TODO remove when Any supports equals() and hashCode()
+ */
+[Intrinsic("kotlin.hashCode")] public inline fun Any.hashCode(): Int = (this as java.lang.Object).hashCode()
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Boolean.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Byte.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Short.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Char.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Int.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Float.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Long.toString(): String = (null as String)
+
+/**
+ * A helper method for calling toString() on Kotlin primitives
+ * TODO remove when Any supports toString()
+ */
+[Intrinsic("kotlin.toString")] public fun Double.toString(): String = (null as String)

libraries/stdlib/src/kotlin/StandardJVM.kt

@@ -47,9 +47,3 @@ public inline fun <T> callable(action: ()-> T): Callable<T> {
         public override fun call() = action()
     }
 }
-
-/**
- * A helper method for calling hashCode() on Kotlin objects
- * TODO remove when Any supports equals() and hashCode()
- */
- public inline fun Any.hashCode(): Int = (this as java.lang.Object).hashCode()