Merging r257763:

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r257763 | djasper | 2016-01-14 05:36:46 -0800 (Thu, 14 Jan 2016) | 8 lines

clang-format: Fix incorrectly enforced linebreak with ColumnLimit 0.

Before:
  aaaa[bbbb]
      .cccc();

After:
  aaaa[bbbb].cccc();
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_38@261225 91177308-0d34-0410-b5e6-96231b3b80d8

Author: zmodem

lib/Format/ContinuationIndenter.cpp

@@ -182,7 +182,7 @@ bool ContinuationIndenter::mustBreak(const LineState &State) {
     return true;
 
   unsigned NewLineColumn = getNewLineColumn(State);
-  if (Current.isMemberAccess() &&
+  if (Current.isMemberAccess() && Style.ColumnLimit != 0 &&
       State.Column + getLengthToNextOperator(Current) > Style.ColumnLimit &&
       (State.Column > NewLineColumn ||
        Current.NestingLevel < State.StartOfLineLevel))

unittests/Format/FormatTest.cpp

@@ -6135,6 +6135,9 @@ TEST_F(FormatTest, FormatsArrays) {
       "                                  .aaaaaaaaaaaaaaaaaaaaaa();");
 
   verifyNoCrash("a[,Y?)]", getLLVMStyleWithColumns(10));
+
+  FormatStyle NoColumnLimit = getLLVMStyleWithColumns(0);
+  verifyFormat("aaaaa[bbbbbb].cccccc()", NoColumnLimit);
 }
 
 TEST_F(FormatTest, LineStartsWithSpecialCharacter) {