Addressed some warnings (mostly MSVC)

projects/SelfTest/ConditionTests.cpp

@@ -210,6 +210,9 @@ TEST_CASE(  "./succeeding/conditions/int literals",
 #pragma GCC diagnostic ignored "-Wsign-compare"
 #pragma GCC diagnostic ignored "-Wsign-conversion"
 #endif
+#ifdef _MSC_VER
+#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
+#endif
 
 TEST_CASE(  "./succeeding/conditions//long_to_unsigned_x",
             "comparisons between int variables" )

projects/SelfTest/ExceptionTests.cpp

@@ -107,6 +107,9 @@ TEST_CASE_NORETURN( "./failing/exceptions/custom", "Unexpected custom exceptions
 {
     throw CustomException( "custom exception" );
 }
+#ifdef _MSC_VER
+#pragma warning(disable:4702) // unreachable code
+#endif
 
 TEST_CASE( "./failing/exceptions/custom/nothrow", "Custom exceptions can be translated when testing for nothrow" )
 {

projects/SelfTest/MessageTests.cpp

@@ -47,7 +47,7 @@ TEST_CASE( "./mixed/message/info/2", "INFO gets logged on failure" )
 
 TEST_CASE( "./failing/message/fail", "FAIL aborts the test" )
 {
-    if( true )
+	if( Catch::isTrue( true ) )
         FAIL( "This is a " << "failure" );    // This should output the message and abort
 }