Update checkfiles

Author: Linyxus

tests/neg-custom-args/captures/i24309-region-orig.check

@@ -0,0 +1,9 @@
+-- Error: tests/neg-custom-args/captures/i24309-region-orig.scala:17:36 ------------------------------------------------
+17 |    val x = r1.subregion[Ref^{r1.R}]: r2 =>  // error, limitation
+   |            ^
+   |            Local reach capability r1.R leaks into capture scope of enclosing function.
+   |            You could try to abstract the capabilities referred to by r1.R in a capset variable.
+18 |      var a: Ref^{r1.R} = r1.alloc(0)
+19 |      var b: Ref^{r2.R} = r2.alloc(0)
+20 |      val c: Ref^{r1.R} = b
+21 |      a

tests/neg-custom-args/captures/i24309a.check

@@ -0,0 +1,4 @@
+-- Error: tests/neg-custom-args/captures/i24309a.scala:4:34 ------------------------------------------------------------
+4 |def runOps2[C^](): Unit = runOps[{C}](???)  // error
+  |                                  ^
+  |                                  Capture set parameter C leaks into capture scope of method runOps2.