Fix line-breaking problem caused by comment.

Before, clang-format would not find a solution for formatting:
if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||
     bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa
    cccccc) {
}

llvm-svn: 183096

clang/lib/Format/Format.cpp

@@ -1040,6 +1040,7 @@ private:
     // should also break after the operator.
     if (Previous.Type == TT_BinaryOperator &&
         Current.Type != TT_BinaryOperator && // Special case for ">>".
+        !Current.isTrailingComment() &&
         !Previous.isOneOf(tok::lessless, tok::question) &&
         Previous.getPrecedence() != prec::Assignment &&
         State.Stack.back().BreakBeforeParameter)

clang/unittests/Format/FormatTest.cpp

@@ -1991,6 +1991,10 @@ TEST_F(FormatTest, LineBreakingInBinaryExpressions) {
                "        TheLine.Last->FormatTok.Tok.getLocation()) -\n"
                "    1);");
 
+  verifyFormat("if ((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ||\n"
+               "     bbbbbbbbbbbbbbbbbb) && // aaaaaaaaaaaaaaaa\n"
+               "    cccccc) {\n}");
+
   FormatStyle OnePerLine = getLLVMStyle();
   OnePerLine.BinPackParameters = false;
   verifyFormat(