Do not update Out after it has a valid location.

Slow paths use LocationSummary to know where to move
things around, and they are executed at the end of the
code generation.

This fix is needed for https://android-review.googlesource.com/#/c/113345/.

Change-Id: Id336c6409479b1de6dc839b736a7234d08a7774a
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 54a12fd..129c374 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -623,6 +623,9 @@
       DCHECK(location.IsConstant());
       DCHECK_EQ(location.GetConstant(), instruction);
     }
+  } else if (instruction->IsTemporary()) {
+    Location temp_location = GetTemporaryLocation(instruction->AsTemporary());
+    Move32(location, temp_location);
   } else if (instruction->IsLoadLocal()) {
     int slot = GetStackSlot(instruction->AsLoadLocal()->GetLocal());
     switch (instruction->GetType()) {