[AVR] Add calling convention parser tokens

Summary: Adds the 'avr_intrcc' and 'avr_signalcc' IR calling convention tokens to the parser.

Reviewers: arsenm

Subscribers: dylanmckay, llvm-commits

Differential Revision: http://reviews.llvm.org/D16348

llvm-svn: 262600
diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index 26eca23..e89e03c 100644
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -579,6 +579,8 @@
   KEYWORD(arm_aapcscc);
   KEYWORD(arm_aapcs_vfpcc);
   KEYWORD(msp430_intrcc);
+  KEYWORD(avr_intrcc);
+  KEYWORD(avr_signalcc);
   KEYWORD(ptx_kernel);
   KEYWORD(ptx_device);
   KEYWORD(spir_kernel);