Rename SourceManager::createFileIDForMemBuffer()

It makes more sense to just overload createFileID().

Gardening only.

llvm-svn: 209002

clang/unittests/AST/CommentParser.cpp

@@ -55,7 +55,7 @@ protected:
 
 FullComment *CommentParserTest::parseString(const char *Source) {
   MemoryBuffer *Buf = MemoryBuffer::getMemBuffer(Source);
-  FileID File = SourceMgr.createFileIDForMemBuffer(Buf);
+  FileID File = SourceMgr.createFileID(Buf);
   SourceLocation Begin = SourceMgr.getLocForStartOfFile(File);
 
   Lexer L(Allocator, Diags, Traits, Begin, Source, Source + strlen(Source));