Add const qualifier to Sema::getTypeName's parameter `II`

Patch by Ismail Pazarbasi.

llvm-svn: 181011
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index cc8cb4a..e2f1e01 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -129,7 +129,7 @@
 ///
 /// If name lookup results in an ambiguity, this routine will complain
 /// and then return NULL.
-ParsedType Sema::getTypeName(IdentifierInfo &II, SourceLocation NameLoc,
+ParsedType Sema::getTypeName(const IdentifierInfo &II, SourceLocation NameLoc,
                              Scope *S, CXXScopeSpec *SS,
                              bool isClassName, bool HasTrailingDot,
                              ParsedType ObjectTypePtr,