Update Slang for Clang/LLVM 3.5a.

Change-Id: Icd59efa1197098076555c505c31939866e504a83
diff --git a/slang_rs.cpp b/slang_rs.cpp
index 00f0c00..47324bf 100644
--- a/slang_rs.cpp
+++ b/slang_rs.cpp
@@ -247,7 +247,7 @@
 
 bool SlangRS::IsRSHeaderFile(const char *File) {
 #define RS_HEADER_ENTRY(name)  \
-  if (::strcmp(File, #name "."RS_HEADER_SUFFIX) == 0)  \
+  if (::strcmp(File, #name "." RS_HEADER_SUFFIX) == 0)  \
     return true;
 ENUM_RS_HEADER()
 #undef RS_HEADER_ENTRY