add end of stream diag

Author: inbelic

clang/lib/Parse/ParseHLSLRootSignature.cpp

@@ -53,7 +53,7 @@ bool RootSignatureParser::Parse() {
   while (!ParseRootElement()) {
     if (Lexer.EndOfBuffer())
       return false;
-    if (ConsumeExpectedToken(TokenKind::pu_comma))
+    if (ConsumeExpectedToken(TokenKind::pu_comma, diag::err_expected_either, TokenKind::end_of_stream))
       return true;
   }
 

clang/unittests/Parse/ParseHLSLRootSignatureTest.cpp

@@ -238,7 +238,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidParseUnexpectedTokenTest) {
   hlsl::RootSignatureParser Parser(Elements, Lexer, *PP);
 
   // Test correct diagnostic produced
-  Consumer->SetExpected(diag::err_expected);
+  Consumer->SetExpected(diag::err_expected_either);
   ASSERT_TRUE(Parser.Parse());
 
   ASSERT_TRUE(Consumer->IsSatisfied());