ART: Add signal_dumper to testing APEX

Bug: 138868214
Test: mmma art
Test: manual
Change-Id: Iec58a4f31836477aba93f0f94ce9863691099d19
diff --git a/build/apex/art_apex_test.py b/build/apex/art_apex_test.py
index 746bf7a..7a992e6 100755
--- a/build/apex/art_apex_test.py
+++ b/build/apex/art_apex_test.py
@@ -899,6 +899,9 @@
     self._checker.check_native_library('libartd-disassembler')
     self._checker.check_native_library('libartd-simulator-container')
 
+    # Check ART test tools.
+    self._checker.check_executable('signal_dumper')
+
 
 class NoSuperfluousBinariesChecker:
   def __init__(self, checker):