Make test result distinguishable more easily

This additionally fixes the output of the gtest related test cases.

Change-Id: Ia9e19604ffe387752b08db4a4ad9a9e255d210a3
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>

plugins/autotest/testresult.cpp

@@ -37,6 +37,7 @@ TestResult::TestResult(const QString &className)
     : m_class(className)
     , m_result(Result::Invalid)
     , m_line(0)
+    , m_type(Qt)
 {
 }
 
@@ -146,5 +147,16 @@ bool operator==(const TestResult &t1, const TestResult &t2)
             && t1.result() == t2.result();
 }
 
+QTestResult::QTestResult(const QString &className)
+    : TestResult(className)
+{
+}
+
+GTestResult::GTestResult(const QString &className)
+    : TestResult(className)
+{
+    setTestType(GTest);
+}
+
 } // namespace Internal
 } // namespace Autotest