Simplify std::lower_bound with llvm::{bsearch,lower_bound}. NFC

llvm-svn: 364006
diff --git a/llvm/lib/Target/Mips/Mips16ISelLowering.cpp b/llvm/lib/Target/Mips/Mips16ISelLowering.cpp
index 45162ef..6d8e5ae 100644
--- a/llvm/lib/Target/Mips/Mips16ISelLowering.cpp
+++ b/llvm/lib/Target/Mips/Mips16ISelLowering.cpp
@@ -459,8 +459,7 @@
         }
         // one more look at list of intrinsics
         const Mips16IntrinsicHelperType *Helper =
-            std::lower_bound(std::begin(Mips16IntrinsicHelper),
-                             std::end(Mips16IntrinsicHelper), IntrinsicFind);
+            llvm::lower_bound(Mips16IntrinsicHelper, IntrinsicFind);
         if (Helper != std::end(Mips16IntrinsicHelper) &&
             *Helper == IntrinsicFind) {
           Mips16HelperFunction = Helper->Helper;