[TableGen] Replace instructions() with getInstructionsByEnumValue(). No need to make an iterator_range when we already have a function that returns an ArrayRef. NFC

llvm-svn: 258019
diff --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp
index aaad422..3cae27f 100644
--- a/llvm/utils/TableGen/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/CodeGenTarget.cpp
@@ -162,7 +162,7 @@
 }
 
 std::string CodeGenTarget::getInstNamespace() const {
-  for (const CodeGenInstruction *Inst : instructions()) {
+  for (const CodeGenInstruction *Inst : getInstructionsByEnumValue()) {
     // Make sure not to pick up "TargetOpcode" by accidentally getting
     // the namespace off the PHI instruction or something.
     if (Inst->Namespace != "TargetOpcode")