Add initial support for compiler unit tests using GTest/GMock.

test/compiler-unittests/testcfg.py

Index: test/compiler-unittests/testcfg.py
diff --git a/test/base-unittests/testcfg.py b/test/compiler-unittests/testcfg.py
similarity index 88%
copy from test/base-unittests/testcfg.py
copy to test/compiler-unittests/testcfg.py
index 0ed46dcdb117b5060fae8e8502cf6b18de525002..4eec956f7e3cca07d0cbccb4724e8884e62e355f 100644
--- a/test/base-unittests/testcfg.py
+++ b/test/compiler-unittests/testcfg.py
@@ -11,9 +11,9 @@ from testrunner.local import utils
 from testrunner.objects import testcase
 
 
-class BaseUnitTestsSuite(testsuite.TestSuite):
+class CompilerUnitTestsSuite(testsuite.TestSuite):
   def __init__(self, name, root):
-    super(BaseUnitTestsSuite, self).__init__(name, root)
+    super(CompilerUnitTestsSuite, self).__init__(name, root)
 
   def ListTests(self, context):
     shell = os.path.abspath(os.path.join(context.shell_dir, self.shell()))
@@ -44,8 +44,8 @@ class BaseUnitTestsSuite(testsuite.TestSuite):
             context.mode_flags)
 
   def shell(self):
-    return "base-unittests"
+    return "compiler-unittests"
 
 
 def GetSuite(name, root):
-  return BaseUnitTestsSuite(name, root)
+  return CompilerUnitTestsSuite(name, root)