Revert "[runtime] Port TypedArraySetFormArrayLike to C++"

This reverts commit a50b6751.

Reason for revert: Regression

Original change's description:
> [runtime] Port TypedArraySetFormArrayLike to C++
> 
> Bug: v8:6704
> Change-Id: I316f085801f4fb6a792124f9a6f80a16e6d43162
> Reviewed-on: https://chromium-review.googlesource.com/616721
> Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
> Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47369}

TBR=franzih@chromium.org,bmeurer@chromium.org

Change-Id: Ibafeae41c85b6d7848b26dac7468057e1cea4769
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6704
Reviewed-on: https://chromium-review.googlesource.com/617480Reviewed-by: Franziska Hinkelmann <franzih@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47383}

src/js/typedarray.js

@@ -250,7 +250,21 @@ TYPED_ARRAYS(TYPED_ARRAY_SUBARRAY_CASE)
 %SetForceInlineFlag(GlobalTypedArray.prototype.subarray);
 
 
- function TypedArraySetFromOverlappingTypedArray(target, source, offset) {
+
+function TypedArraySetFromArrayLike(target, source, sourceLength, offset) {
+  if (offset > 0) {
+    for (var i = 0; i < sourceLength; i++) {
+      target[offset + i] = source[i];
+    }
+  }
+  else {
+    for (var i = 0; i < sourceLength; i++) {
+      target[i] = source[i];
+    }
+  }
+}
+
+function TypedArraySetFromOverlappingTypedArray(target, source, offset) {
   var sourceElementSize = source.BYTES_PER_ELEMENT;
   var targetElementSize = target.BYTES_PER_ELEMENT;
   var sourceLength = %_TypedArrayGetLength(source);
@@ -325,7 +339,7 @@ DEFINE_METHOD_LEN(
         if (intOffset === 0) {
           %TypedArrayCopyElements(this, obj, %_TypedArrayGetLength(obj));
         } else {
-          %_TypedArraySetFromArrayLike(
+          TypedArraySetFromArrayLike(
               this, obj, %_TypedArrayGetLength(obj), intOffset);
         }
         return;
@@ -345,7 +359,7 @@ DEFINE_METHOD_LEN(
         if (intOffset + l > %_TypedArrayGetLength(this)) {
           throw %make_range_error(kTypedArraySetSourceTooLarge);
         }
-        %_TypedArraySetFromArrayLike(this, obj, l, intOffset);
+        TypedArraySetFromArrayLike(this, obj, l, intOffset);
         return;
     }
   },

src/runtime/runtime-typedarray.cc

@@ -110,32 +110,6 @@ enum TypedArraySetResultCodes {
   TYPED_ARRAY_SET_NON_TYPED_ARRAY = 3
 };
 
-// TypedArraySetFromArrayLike(target, source, source_length, offset);
-RUNTIME_FUNCTION(Runtime_TypedArraySetFromArrayLike) {
-  HandleScope scope(isolate);
-  DCHECK_EQ(4, args.length());
-
-  CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, target, 0);
-  CONVERT_ARG_HANDLE_CHECKED(Object, source, 1);
-
-  CONVERT_INT32_ARG_CHECKED(source_length, 2);
-  DCHECK_GE(source_length, 0);
-
-  CONVERT_INT32_ARG_CHECKED(offset, 3);
-  DCHECK_GE(offset, 0);
-
-  for (int i = 0; i < source_length; i++) {
-    Handle<Object> value;
-    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, value,
-                                       Object::GetElement(isolate, source, i));
-    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-        isolate, value,
-        Object::SetElement(isolate, target, offset + i, value,
-                           LanguageMode::STRICT));
-  }
-
-  return *target;
-}
 
 RUNTIME_FUNCTION(Runtime_TypedArraySetFastCases) {
   HandleScope scope(isolate);

src/runtime/runtime.h

@@ -620,7 +620,6 @@ namespace internal {
   F(ArrayBufferViewWasNeutered, 1, 1)    \
   F(TypedArrayGetLength, 1, 1)           \
   F(TypedArrayGetBuffer, 1, 1)           \
-  F(TypedArraySetFromArrayLike, 4, 1)    \
   F(TypedArraySetFastCases, 3, 1)        \
   F(TypedArraySortFast, 1, 1)            \
   F(TypedArrayMaxSizeInHeap, 0, 1)       \