Rename lisp-like functions as suggested by Gabor Greif as loooong time
ago.  This is both easier to learn and easier to read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123001 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/TGLexer.cpp b/utils/TableGen/TGLexer.cpp
index 732c792..82d2b64 100644
--- a/utils/TableGen/TGLexer.cpp
+++ b/utils/TableGen/TGLexer.cpp
@@ -424,14 +424,14 @@
     StringSwitch<tgtok::TokKind>(StringRef(Start, CurPtr - Start))
     .Case("eq", tgtok::XEq)
     .Case("if", tgtok::XIf)
-    .Case("car", tgtok::XCar)
-    .Case("cdr", tgtok::XCdr)
+    .Case("head", tgtok::XHead)
+    .Case("tail", tgtok::XTail)
     .Case("con", tgtok::XConcat)
     .Case("shl", tgtok::XSHL)
     .Case("sra", tgtok::XSRA)
     .Case("srl", tgtok::XSRL)
     .Case("cast", tgtok::XCast)
-    .Case("null", tgtok::XNull)
+    .Case("empty", tgtok::XEmpty)
     .Case("subst", tgtok::XSubst)
     .Case("foreach", tgtok::XForEach)
     .Case("strconcat", tgtok::XStrConcat)