[deoptimizer] Simplify handling of bottommost output frames.

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index 4b1d3096d939eadf073999fb557a42fd66069a89..f8fa8e18f29eccf59cc183e45b43507ec2e895ce 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -608,6 +608,7 @@ class Deoptimizer : public Malloced {
                             unsigned output_offset,
                             const char* debug_hint_string);
 
+  unsigned ComputeInputFrameAboveFpFixedSize() const;
   unsigned ComputeInputFrameSize() const;
   static unsigned ComputeJavascriptFixedSize(SharedFunctionInfo* shared);
   static unsigned ComputeInterpretedFixedSize(SharedFunctionInfo* shared);
@@ -667,8 +668,15 @@ class Deoptimizer : public Malloced {
   // Array of output frame descriptions.
   FrameDescription** output_;
 
+  // Caller frame details computed from input frame.
+  intptr_t caller_frame_top_;
+  intptr_t caller_fp_;
+  intptr_t caller_pc_;
+  intptr_t caller_constant_pool_;
+  intptr_t input_frame_context_;
+
   // Key for lookup of previously materialized objects
-  Address stack_fp_;
+  intptr_t stack_fp_;
 
   TranslatedState translated_state_;
   struct ValueToMaterialize {