Automerge: [gn build] Port 1ee740a

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/lib/IR/BUILD.gn

@@ -89,6 +89,7 @@ static_library("IR") {
     "Value.cpp",
     "ValueSymbolTable.cpp",
     "VectorBuilder.cpp",
+    "VectorTypeUtils.cpp",
     "Verifier.cpp",
   ]
 }

llvm/utils/gn/secondary/llvm/unittests/IR/BUILD.gn

@@ -55,6 +55,7 @@ unittest("IRTests") {
     "ValueMapTest.cpp",
     "ValueTest.cpp",
     "VectorBuilderTest.cpp",
+    "VectorTypeUtilsTest.cpp",
     "VectorTypesTest.cpp",
     "VerifierTest.cpp",
   ]