Fix C++11 warnings in RangeSetTest.cpp

This change fixes the following warnings:
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:727:55: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     727 | TYPED_TEST_SUITE(RangeSetCastToNoopTest, NoopCastTypes);
	 |                                                       ^
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:728:65: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     728 | TYPED_TEST_SUITE(RangeSetCastToPromotionTest, PromotionCastTypes);
	 |                                                                 ^
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:729:67: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     729 | TYPED_TEST_SUITE(RangeSetCastToTruncationTest, TruncationCastTypes);
	 |                                                                   ^
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:730:67: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     730 | TYPED_TEST_SUITE(RangeSetCastToConversionTest, ConversionCastTypes);
	 |                                                                   ^
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:732:46: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     732 |                  PromotionConversionCastTypes);
	 |                                              ^
   llvm/clang/unittests/StaticAnalyzer/RangeSetTest.cpp:734:47: warning: ISO C++11 requires at least one argument for the "..." in a variadic macro
     734 |                  TruncationConversionCastTypes);
	 |                                               ^

Reviewed By: steakhal

Differential Revision: https://reviews.llvm.org/D142439