Rename tok::eom to tok::eod.

The previous name was inaccurate as this token in fact appears at
the end of every preprocessing directive, not just macro definitions.
No functionality change, except for a diagnostic tweak.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126631 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/TokenLexer.cpp b/lib/Lex/TokenLexer.cpp
index caa44bf..f1e1596 100644
--- a/lib/Lex/TokenLexer.cpp
+++ b/lib/Lex/TokenLexer.cpp
@@ -546,7 +546,7 @@
 /// isParsingPreprocessorDirective - Return true if we are in the middle of a
 /// preprocessor directive.
 bool TokenLexer::isParsingPreprocessorDirective() const {
-  return Tokens[NumTokens-1].is(tok::eom) && !isAtEnd();
+  return Tokens[NumTokens-1].is(tok::eod) && !isAtEnd();
 }
 
 /// HandleMicrosoftCommentPaste - In microsoft compatibility mode, /##/ pastes