Implements the test sharding protocol. By Eric Fellheimer.

test/gtest_output_test_golden_lin.txt

@@ -7,7 +7,7 @@ Expected: true
 gtest_output_test_.cc:#: Failure
 Value of: 3
 Expected: 2
-[==========] Running 54 tests from 22 test cases.
+[==========] Running 56 tests from 23 test cases.
 [----------] Global test environment set-up.
 FooEnvironment::SetUp() called.
 BarEnvironment::SetUp() called.
@@ -26,6 +26,11 @@ BarEnvironment::SetUp() called.
 [----------] 1 test from My/ATypeParamDeathTest/1, where TypeParam = double
 [ RUN      ] My/ATypeParamDeathTest/1.ShouldRunFirst
 [       OK ] My/ATypeParamDeathTest/1.ShouldRunFirst
+[----------] 2 tests from PassingTest
+[ RUN      ] PassingTest.PassingTest1
+[       OK ] PassingTest.PassingTest1
+[ RUN      ] PassingTest.PassingTest2
+[       OK ] PassingTest.PassingTest2
 [----------] 3 tests from FatalFailureTest
 [ RUN      ] FatalFailureTest.FatalFailureInSubroutine
 (expecting a failure that x should be 1)
@@ -508,8 +513,8 @@ FooEnvironment::TearDown() called.
 gtest_output_test_.cc:#: Failure
 Failed
 Expected fatal failure.
-[==========] 54 tests from 22 test cases ran.
-[  PASSED  ] 19 tests.
+[==========] 56 tests from 23 test cases ran.
+[  PASSED  ] 21 tests.
 [  FAILED  ] 35 tests, listed below:
 [  FAILED  ] FatalFailureTest.FatalFailureInSubroutine
 [  FAILED  ] FatalFailureTest.FatalFailureInNestedSubroutine
@@ -612,3 +617,16 @@ Note: Google Test filter = *DISABLED_*
 [----------] Global test environment tear-down
 [==========] 1 test from 1 test case ran.
 [  PASSED  ] 1 test.
+Note: Google Test filter = PassingTest.*
+Note: This is test shard 1 of 2.
+[==========] Running 1 test from 1 test case.
+[----------] Global test environment set-up.
+[----------] 1 test from PassingTest
+[ RUN      ] PassingTest.PassingTest2
+[       OK ] PassingTest.PassingTest2
+[----------] Global test environment tear-down
+[==========] 1 test from 1 test case ran.
+[  PASSED  ] 1 test.
+
+  YOU HAVE 1 DISABLED TEST
+