Fix a problem in ExpressionParser leading to trailing comments affecting indentation of an expression after a line break.

Summary:
E.g. the second line in 

return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
           b; //

is indented 4 characters more than in

return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
       b;

Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D984

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184078 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Format/TokenAnnotator.cpp b/lib/Format/TokenAnnotator.cpp
index 85c5a36..c6b4919 100644
--- a/lib/Format/TokenAnnotator.cpp
+++ b/lib/Format/TokenAnnotator.cpp
@@ -151,7 +151,7 @@
     if (!CurrentToken)
       return false;
 
-    // A '[' could be an index subscript (after an indentifier or after
+    // A '[' could be an index subscript (after an identifier or after
     // ')' or ']'), it could be the start of an Objective-C method
     // expression, or it could the the start of an Objective-C array literal.
     FormatToken *Left = CurrentToken->Previous;
@@ -792,11 +792,6 @@
     if (Precedence > prec::PointerToMember || Current == NULL)
       return;
 
-    // Eagerly consume trailing comments.
-    while (Current && Current->isTrailingComment()) {
-      next();
-    }
-
     FormatToken *Start = Current;
     bool OperatorFound = false;
 
@@ -862,7 +857,9 @@
   }
 
   void next() {
-    if (Current != NULL)
+    if (Current)
+      Current = Current->Next;
+    while (Current && Current->isTrailingComment())
       Current = Current->Next;
   }