Update prebuilt Clang to r365631c1 from Android.

The version we had was segfaulting.

Bug: 132420445
Change-Id: Icb45a6fe0b4e2166f7895e669df1157cec9fb4e0
diff --git a/linux-x64/clang/include/llvm/IR/Operator.h b/linux-x64/clang/include/llvm/IR/Operator.h
index 613d434..8199c65 100644
--- a/linux-x64/clang/include/llvm/IR/Operator.h
+++ b/linux-x64/clang/include/llvm/IR/Operator.h
@@ -187,6 +187,12 @@
 
   FastMathFlags() = default;
 
+  static FastMathFlags getFast() {
+    FastMathFlags FMF;
+    FMF.setFast();
+    return FMF;
+  }
+
   bool any() const { return Flags != 0; }
   bool none() const { return Flags == 0; }
   bool all() const { return Flags == ~0U; }
@@ -379,6 +385,7 @@
     case Instruction::ExtractElement:
     case Instruction::ShuffleVector:
     case Instruction::InsertElement:
+    case Instruction::PHI:
       return false;
     default:
       return V->getType()->isFPOrFPVectorTy();