Skip debug/debug-stepout-scope tests on ARM debug

TBR=machenbach@chromium.org

Bug: v8:7877
Change-Id: Id890681e70cea8beef89ea2df2578255906fb7f6
Reviewed-on: https://chromium-review.googlesource.com/1110136
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53952}

test/debugger/debugger.status

@@ -85,6 +85,19 @@
   'debug/ignition/debug-step-prefix-bytecodes': [SKIP],
 }],  # 'arch == arm and not simulator_run'
 
+##############################################################################
+['arch == arm and mode == debug', {
+  # Tests taking too long
+  'debug/debug-stepout-scope-part1': [SKIP],
+  'debug/debug-stepout-scope-part2': [SKIP],
+  'debug/debug-stepout-scope-part3': [SKIP],
+  'debug/debug-stepout-scope-part4': [SKIP],
+  'debug/debug-stepout-scope-part5': [SKIP],
+  'debug/debug-stepout-scope-part6': [SKIP],
+  'debug/debug-stepout-scope-part7': [SKIP],
+  'debug/debug-stepout-scope-part8': [SKIP],
+}],  # 'arch == arm and mode == debug'
+
 ##############################################################################
 ['arch == s390 or arch == s390x', {