Enable first-class aggregates support.

Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp
index 42fb3b2..1da2e38 100644
--- a/lib/AsmParser/LLLexer.cpp
+++ b/lib/AsmParser/LLLexer.cpp
@@ -604,7 +604,7 @@
   INSTKEYWORD("extractelement", OtherOpVal, ExtractElement, EXTRACTELEMENT);
   INSTKEYWORD("insertelement", OtherOpVal, InsertElement, INSERTELEMENT);
   INSTKEYWORD("shufflevector", OtherOpVal, ShuffleVector, SHUFFLEVECTOR);
-  INSTKEYWORD("getresult", OtherOpVal, GetResult, GETRESULT);
+  INSTKEYWORD("getresult", OtherOpVal, ExtractValue, GETRESULT);
   INSTKEYWORD("extractvalue", OtherOpVal, ExtractValue, EXTRACTVALUE);
   INSTKEYWORD("insertvalue", OtherOpVal, InsertValue, INSERTVALUE);
 #undef INSTKEYWORD