Re-land Crankshaft-generated KeyedLoad stubs.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 0bc8aef6ebc5bc27e40bf088a24f5cd9ba8e1e49..b2ce5203c511d096b7f300c290100aea80418d26 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -356,7 +356,7 @@ bool LCodeGen::GenerateJumpTable() {
           __ jmp(&needs_frame_is_call);
         } else {
           __ bind(&needs_frame_is_call);
-          __ push(esi);
+          __ push(MemOperand(ebp, StandardFrameConstants::kContextOffset));
           // This variant of deopt can only be used with stubs. Since we don't
           // have a function pointer to install in the stack frame that we're
           // building, install a special marker there instead.
@@ -381,7 +381,7 @@ bool LCodeGen::GenerateJumpTable() {
           __ jmp(&needs_frame_not_call);
         } else {
           __ bind(&needs_frame_not_call);
-          __ push(esi);
+          __ push(MemOperand(ebp, StandardFrameConstants::kContextOffset));
           // This variant of deopt can only be used with stubs. Since we don't
           // have a function pointer to install in the stack frame that we're
           // building, install a special marker there instead.