fix: handle exit 1 in some test module funcs

stdout_matches and stdout_equals now print the test failure correctly
when exec exits != 0.

lib/test.risor

@@ -134,12 +134,18 @@ func stdout_equals(desc, cmd, expected) {
   if len(tokens) > 1 {
     args.extend(tokens[1:])
   }
-  out := exec(bin, args).stdout
-  if out != expected {
-    print_fail(desc + ' (expected: {expected}, got: {out})')
-  } else {
-    print_ok(desc)
-  }
+
+  try(func() {
+    out := exec(bin, args)
+    if out.stdout != expected {
+      print_fail(desc + ' (expected: {expected}, got: {out})')
+    } else {
+      print_ok(desc)
+    }
+  }, func(e) {
+    print_fail(desc + ' (error: {e})')
+  })
+
 }
 
 // Assert that cmd output matches a regular expression.
@@ -154,12 +160,17 @@ func stdout_matches(desc, cmd, reg) {
   if len(tokens) > 1 {
     args.extend(tokens[1:])
   }
-  out := exec(bin, args).stdout
-  if regexp.match(reg, out) {
-    print_ok(desc)
-  } else {
-    print_fail(desc + '(output {out} does not match {reg})')
-  }
+
+  try(func() {
+    out := exec(bin, args)
+    if regexp.match(reg, out.stdout) {
+      print_ok(desc)
+    } else {
+      print_fail(desc + '(output {out} does not match {reg})')
+    }
+  }, func(e) {
+    print_fail(desc + ' (error: {e})')
+  })
 }
 
 // Assert that a path is a directory.