ART: Checker tests for --debuggable

Checker was disabled for --debuggable because the code was not compiled
with Optimizing. Now that it is, we might want to write Checker tests
only for this mode. With this patch, CHECK-START(-ARCH)-DEBUGGABLE
tests will only be invoked on output of debuggable compilation.
Existing CHECK-START(-ARCH) tests will not be invoked.

Change-Id: I00c864f77b038af913d0d22ba7cf5655687f7c7c
diff --git a/tools/checker/run_unit_tests.py b/tools/checker/run_unit_tests.py
index 2e8f208..a0d274d 100755
--- a/tools/checker/run_unit_tests.py
+++ b/tools/checker/run_unit_tests.py
@@ -19,7 +19,7 @@
 from file_format.checker.test      import CheckerParser_PrefixTest, \
                                           CheckerParser_TestExpressionTest, \
                                           CheckerParser_FileLayoutTest, \
-                                          CheckerParser_ArchTests, \
+                                          CheckerParser_SuffixTests, \
                                           CheckerParser_EvalTests
 from match.test                    import MatchLines_Test, \
                                           MatchFiles_Test