mehdi_amini added inline comments.

================
Comment at: include/clang/Basic/IdentifierTable.h:103
@@ -95,1 +102,3 @@
+    return getLength() == StrLen-1 &&
+           memcmp(getNameStart(), Str, StrLen-1) == 0;
   }
----------------
Eugene.Zelenko wrote:
> memcpy result is three state, so applying Boolean operator is not correct.
What do you mean "applying Boolean operator is not correct"?
http://en.cppreference.com/w/cpp/language/implicit_conversion # Boolean 
conversions
  ```The value zero (for integral, floating-point, and unscoped enumeration) 
and the null pointer and the null pointer-to-member values become false. All 
other values become true.```

Seems good to me?


================
Comment at: include/clang/Lex/PreprocessorOptions.h:22
@@ -23,2 +21,3 @@
 namespace llvm {
+
   class MemoryBuffer;
----------------
Eugene.Zelenko wrote:
> I wanted to make spacing consistent. Same in other places.
> 
> Actually, Include What You Use recommended to include MemoryBuffer.h. 
> MemoryBuffer is used in smart pointers, but I remember that I encountered 
> problems in LLDB MSVC builds, where forward declaration was not enough for 
> such usage.
I think in a recent review you mentioned "empty lines make code more readable 
for large namespaces", which does not seem to be the case here?


Repository:
  rL LLVM

https://reviews.llvm.org/D23595



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