clang-format: Prevent weird line-wraps in complex lambda introducers

Before:
  aaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
      [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]() -> ::std::
	  unordered_set<aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {
	    //
	  });

After:
  aaaaaaaaa.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
      [aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]()
	  -> ::std::unordered_set<
	      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa> {
	//
      });

llvm-svn: 295659

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/Format/ContinuationIndenter.cpp b/clang/lib/Format/ContinuationIndenter.cpp
index 173ca17c2a3..8a28e630dbc 100644
--- a/clang/lib/Format/ContinuationIndenter.cpp
+++ b/clang/lib/Format/ContinuationIndenter.cpp
@@ -810,6 +810,8 @@ unsigned ContinuationIndenter::moveStateToNextToken(LineState &State,
   if (Current.isOneOf(TT_BinaryOperator, TT_ConditionalExpr) && Newline)
     State.Stack.back().NestedBlockIndent =
         State.Column + Current.ColumnWidth + 1;
+  if (Current.isOneOf(TT_LambdaLSquare, TT_LambdaArrow))
+    State.Stack.back().LastSpace = State.Column;
 
   // Insert scopes created by fake parenthesis.
   const FormatToken *Previous = Current.getPreviousNonComment();