Add regression test

flip1995 · flip1995 · commit 90f7997771ca · 2018-09-07T17:41:03.000+02:00
diff --git a/tests/ui/issue-3145.rs b/tests/ui/issue-3145.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("{}" a); //~ERROR expected token: `,`
+}
diff --git a/tests/ui/issue-3145.stderr b/tests/ui/issue-3145.stderr
@@ -0,0 +1,8 @@
+error: expected token: `,`
+ --> $DIR/issue-3145.rs:2:19
+  |
+2 |     println!("{}" a); //~ERROR expected token: `,`
+  |                   ^
+
+error: aborting due to previous error
+

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+fn main() {`
	`2`	+ println!("{}" a); //~ERROR expected token: `,`
	`3`	`+}`