clang-format: Don't split a >>-operator.

Before (with column limit 60):
  aaaaaaaaaaaaaaaaaaaaaaaaaaaa(aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >
      > aaaaa);

After:
  aaaaaaaaaaaaaaaaaaaaaaaaaaaa(
      aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);

(Not sure how that could have stayed in that long without being
detected..)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190854 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 4229380..2dfc405 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -3612,6 +3612,10 @@
                "}");
   verifyFormat("template <typename... Types>\n"
                "typename enable_if<0 < sizeof...(Types)>::type Foo() {}");
+
+  verifyFormat("aaaaaaaaaaaaaaaaaaaaaaaaaaaa(\n"
+               "    aaaaaaaaaaaaaaaaaaaaaaaaaaaaa >> aaaaa);",
+               getLLVMStyleWithColumns(60));
 }
 
 TEST_F(FormatTest, UnderstandsBinaryOperators) {