[PATCH] MC: handle '//' correctly in AsmLexer::isAtStartOfComment()

[Saleem Abdulrasool]

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Comment at: lib/MC/MCParser/AsmLexer.cpp:466
@@ -464,1 +465,3 @@
+    return Char == CommentString[0] && *CurPtr == CommentString[1];
+  return Char == *CommentString;
 }
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Im not sure I like this approach.  Having the special comment string being taken care of by looking at both the user supplied input and the internal pointer makes me uneasy.  If we want to use the internal cursor to check the current position, then drop the argument and make check purely internal.

http://reviews.llvm.org/D4597