Add guard against non-ES5 integer literals.

src/babel/generation/generators/types.js

@@ -100,7 +100,7 @@ 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;
-    if (val === +raw && raw[raw.length - 1] !== ".") {
+    if (val === +raw && raw[raw.length - 1] !== "." && !/^0[bo]/i.test(raw)) {
       this.push(raw);
     } else {
       this.push(val + "");

test/core/fixtures/generation/types/Literal/actual.js

@@ -6,3 +6,7 @@
 null;
 true;
 false;
+5.;
+0b10;
+0o70;
+0X1F;

test/core/fixtures/generation/types/Literal/expected.js

@@ -6,3 +6,7 @@
 null;
 true;
 false;
+5;
+2;
+56;
+0X1F;