fix up raw number literal

src/babel/generation/generators/types.js

@@ -100,7 +100,11 @@ export function Literal(node) {
     // check to see if this is the same number as the raw one in the original source as asm.js uses
     // numbers in the form 5.0 for type hinting
     var raw = node.raw;
-    this.push(val === +raw ? raw : val + "");
+    if (val === +raw && raw[raw.length - 1] !== ".") {
+      this.push(raw);
+    } else {
+      this.push(val + "");
+    }
   } else if (type === "boolean") {
     this.push(val ? "true" : "false");
   } else if (node.regex) {