Added test for obsolete KT-11631: Couldn't inline method call

#KT-11631 Obsolete

compiler/testData/diagnostics/tests/implicitNothing.kt

@@ -17,6 +17,8 @@ fun check() {
     <!UNREACHABLE_CODE!>val <!UNUSED_VARIABLE!>x<!> =<!> null!!
 }
 
+fun <!IMPLICIT_NOTHING_RETURN_TYPE!>nonLocalReturn<!>() = run { return }
+
 class Klass {
     fun <!IMPLICIT_NOTHING_RETURN_TYPE!>bar<!>() = null!!
 
@@ -47,4 +49,4 @@ class Derived : Base {
     override val x = null!!
 
     override fun foo() = null!!
-}
+}