Support data parsing operations (#380)

backend.native/tests/runtime/text/parse0.kt

@@ -0,0 +1,15 @@
+fun main(args: Array<String>) {
+    println("false".toBoolean())
+    println("true".toBoolean())
+    println("-1".toByte())
+    println("aa".toByte(16))
+    println("11110".toInt(2))
+    println("ffffffff".toLong(16))
+    try {
+        val x = "ffffffff".toLong(10)
+    } catch (ne: NumberFormatException) {
+        println("bad format")
+    }
+    println("0.5".toFloat())
+    println("2.39".toDouble())
+}