Update @babel/core to beta 49

Author: novemberborn

package-lock.json

@@ -27,7 +27,7 @@
     "throws"
   ],
   "devDependencies": {
-    "@babel/core": "7.0.0-beta.48",
+    "@babel/core": "7.0.0-beta.49",
     "ava": "^0.25.0",
     "codecov": "^3.0.2",
     "nyc": "^11.8.0",

package.json

@@ -5,7 +5,7 @@ import fn from '.';
 function transform(input) {
 	return babel.transform(input, {
 		plugins: [fn],
-		filename: 'some-file.js'
+		filename: '/some-file.js'
 	});
 }
 

test.js

@@ -22,7 +22,7 @@ Generated by [AVA](https://ava.li).
       return arg;␊
     }␊
     ␊
-    t.throws((_avaThrowsHelperStart(t, "throws", "some-file.js", 1), _avaThrowsHelperEnd(t, foo())));`
+    t.throws((_avaThrowsHelperStart(t, "throws", "/some-file.js", 1), _avaThrowsHelperEnd(t, foo())));`
 
 ## creates the helper only once
 
@@ -42,14 +42,14 @@ Generated by [AVA](https://ava.li).
       return arg;␊
     }␊
     ␊
-    t.throws((_avaThrowsHelperStart(t, "throws", "some-file.js", 1), _avaThrowsHelperEnd(t, foo())));␊
-    t.throws((_avaThrowsHelperStart(t, "throws", "some-file.js", 1), _avaThrowsHelperEnd(t, bar())));
+    t.throws((_avaThrowsHelperStart(t, "throws", "/some-file.js", 1), _avaThrowsHelperEnd(t, foo())));␊
+    t.throws((_avaThrowsHelperStart(t, "throws", "/some-file.js", 1), _avaThrowsHelperEnd(t, bar())));`
 
 ## does nothing if it does not match
 
 > t.is(foo());
 
-    't.is(foo());
+    't.is(foo());'
 
 ## helps notThrows
 
@@ -69,4 +69,4 @@ Generated by [AVA](https://ava.li).
       return arg;␊
     }␊
     ␊
-    t.notThrows((_avaThrowsHelperStart(t, "notThrows", "some-file.js", 1), _avaThrowsHelperEnd(t, baz())));`
+    t.notThrows((_avaThrowsHelperStart(t, "notThrows", "/some-file.js", 1), _avaThrowsHelperEnd(t, baz())));`