Add ui test for early exiting if no main

Stupremee · Stupremee · commit c93fc933bd54 · 2020-07-09T14:08:45.000+02:00
diff --git a/tests/run-pass/no_main.rs b/tests/run-pass/no_main.rs
@@ -0,0 +1 @@
+#![no_main]
diff --git a/tests/run-pass/no_main.stderr b/tests/run-pass/no_main.stderr
@@ -0,0 +1,2 @@
+error: miri can only run programs that have a main function
+

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+error: miri can only run programs that have a main function`
	`2`	`+`