fixup! Editorial: Introduce ResolveBounds

Author: gibson042

spec.emu

@@ -525,8 +525,8 @@ contributors: Mark S. Miller, Richard Gibson
           1. Let _newBuffer_ be ? <emu-meta suppress-effects="user-code">AllocateArrayBuffer(%ArrayBuffer%, _newByteLength_, _newMaxByteLength_)</emu-meta>.
           1. <del>Let _copyLength_ be min(_newByteLength_, _arrayBuffer_.[[ArrayBufferByteLength]]).</del>
           1. Let _fromBlock_ be _arrayBuffer_.[[ArrayBufferData]].
-          1. Let _toBlock_ be _newBuffer_.[[ArrayBufferData]].
           1. <ins>NOTE: This is the only step that can write into the Data Block of an immutable ArrayBuffer.</ins>
+          1. Let _toBlock_ be _newBuffer_.[[ArrayBufferData]].
           1. Perform CopyDataBlockBytes(_toBlock_, 0, _fromBlock_, 0, _copyLength_).
           1. NOTE: Neither creation of the new Data Block nor copying from the old Data Block are observable. Implementations may implement this method as a zero-copy move or a `realloc`.
           1. Perform ! DetachArrayBuffer(_arrayBuffer_).
@@ -672,9 +672,17 @@ contributors: Mark S. Miller, Richard Gibson
           1. If IsSharedArrayBuffer(_O_) is *true*, throw a *TypeError* exception.
           1. If IsDetachedBuffer(_O_) is *true*, throw a *TypeError* exception.
           1. Let _len_ be _O_.[[ArrayBufferByteLength]].
-          1. Let _bounds_ be ? ResolveBounds(_len_, _start_, _end_).
-          1. Let _first_ be _bounds_.[[From]].
-          1. Let _final_ be _bounds_.[[To]].
+          1. <del>Let _relativeStart_ be ? ToIntegerOrInfinity(_start_).</del>
+          1. <del>If _relativeStart_ = -∞, let _first_ be 0.</del>
+          1. <del>Else if _relativeStart_ &lt; 0, let _first_ be max(_len_ + _relativeStart_, 0).</del>
+          1. <del>Else, let _first_ be min(_relativeStart_, _len_).</del>
+          1. <del>If _end_ is *undefined*, let _relativeEnd_ be _len_; else let _relativeEnd_ be ? ToIntegerOrInfinity(_end_).</del>
+          1. <del>If _relativeEnd_ = -∞, let _final_ be 0.</del>
+          1. <del>Else if _relativeEnd_ &lt; 0, let _final_ be max(_len_ + _relativeEnd_, 0).</del>
+          1. <del>Else, let _final_ be min(_relativeEnd_, _len_).</del>
+          1. <ins>Let _bounds_ be ? ResolveBounds(_len_, _start_, _end_).</ins>
+          1. <ins>Let _first_ be _bounds_.[[From]].</ins>
+          1. <ins>Let _final_ be _bounds_.[[To]].</ins>
           1. Let _newLen_ be max(_final_ - _first_, 0).
           1. Let _ctor_ be ? SpeciesConstructor(_O_, %ArrayBuffer%).
           1. Let _new_ be ? Construct(_ctor_, « 𝔽(_newLen_) »).