[Sheriff] Revert "Add support for keyed-call on arrays of fast elements"

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index de9123d5c4ce0d2d1688b8f40d862f3c586540da..207dd8cdaa40550343a1d7a7a31fc6ff5bbc5bc7 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -509,36 +509,17 @@ Operand LCodeGen::ToOperand(LOperand* op) {
 }
 
 
-static int ArgumentsOffsetWithoutFrame(int index) {
-  ASSERT(index < 0);
-  return -(index + 1) * kPointerSize;
-}
-
-
 MemOperand LCodeGen::ToMemOperand(LOperand* op) const {
   ASSERT(!op->IsRegister());
   ASSERT(!op->IsDoubleRegister());
   ASSERT(op->IsStackSlot() || op->IsDoubleStackSlot());
-  if (NeedsEagerFrame()) {
-    return MemOperand(fp, StackSlotOffset(op->index()));
-  } else {
-    // Retrieve parameter without eager stack-frame relative to the
-    // stack-pointer.
-    return MemOperand(sp, ArgumentsOffsetWithoutFrame(op->index()));
-  }
+  return MemOperand(fp, StackSlotOffset(op->index()));
 }
 
 
 MemOperand LCodeGen::ToHighMemOperand(LOperand* op) const {
   ASSERT(op->IsDoubleStackSlot());
-  if (NeedsEagerFrame()) {
-    return MemOperand(fp, StackSlotOffset(op->index()) + kPointerSize);
-  } else {
-    // Retrieve parameter without eager stack-frame relative to the
-    // stack-pointer.
-    return MemOperand(
-        sp, ArgumentsOffsetWithoutFrame(op->index()) + kPointerSize);
-  }
+  return MemOperand(fp, StackSlotOffset(op->index()) + kPointerSize);
 }
 
 
@@ -4126,12 +4107,7 @@ void LCodeGen::DoCallFunction(LCallFunction* instr) {
 
   int arity = instr->arity();
   CallFunctionStub stub(arity, NO_CALL_FUNCTION_FLAGS);
-  if (instr->hydrogen()->IsTailCall()) {
-    if (NeedsEagerFrame()) __ mov(sp, fp);
-    __ Jump(stub.GetCode(isolate()), RelocInfo::CODE_TARGET);
-  } else {
-    CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
-  }
+  CallCode(stub.GetCode(isolate()), RelocInfo::CODE_TARGET, instr);
 }