Editorial: Replace uses of Type(...) notation

Updated to match <tc39/ecma262#2874>.

spec/collator.html

@@ -205,7 +205,7 @@ <h1>Collator Compare Functions</h1>
 
         <emu-alg>
           1. Let _collator_ be _F_.[[Collator]].
-          1. Assert: Type(_collator_) is Object and _collator_ has an [[InitializedCollator]] internal slot.
+          1. Assert: _collator_ is an Object and _collator_ has an [[InitializedCollator]] internal slot.
           1. If _x_ is not provided, let _x_ be *undefined*.
           1. If _y_ is not provided, let _y_ be *undefined*.
           1. Let _X_ be ? ToString(_x_).

spec/datetimeformat.html

@@ -1359,7 +1359,7 @@ <h1>DateTime Format Functions</h1>
 
       <emu-alg>
         1. Let _dtf_ be _F_.[[DateTimeFormat]].
-        1. Assert: Type(_dtf_) is Object and _dtf_ has an [[InitializedDateTimeFormat]] internal slot.
+        1. Assert: _dtf_ is an Object and _dtf_ has an [[InitializedDateTimeFormat]] internal slot.
         1. If _date_ is not provided or is *undefined*, then
           1. Let _x_ be ! Call(%Date.now%, *undefined*).
         1. Else,
@@ -1779,7 +1779,7 @@ <h1>
         </dd>
       </dl>
       <emu-alg>
-        1. If Type(_dtf_) is not Object, throw a *TypeError* exception.
+        1. If _dtf_ is not an Object, throw a *TypeError* exception.
         1. If _dtf_ does not have an [[InitializedDateTimeFormat]] internal slot and ? OrdinaryHasInstance(%Intl.DateTimeFormat%, _dtf_) is *true*, then
           1. Return ? Get(_dtf_, %Intl%.[[FallbackSymbol]]).
         1. Return _dtf_.

spec/listformat.html

@@ -273,7 +273,7 @@ <h1>
           1. Else,
             1. Assert: _placeables_ has a field [[&lt;_part_&gt;]].
             1. Let _subst_ be _placeables_.[[&lt;_part_&gt;]].
-            1. If Type(_subst_) is List, then
+            1. If _subst_ is a List, then
               1. For each element _s_ of _subst_, do
                 1. Append _s_ to _result_.
             1. Else,
@@ -385,7 +385,7 @@ <h1>
           1. Let _next_ be ? IteratorStepValue(_iteratorRecord_).
           1. If _next_ is ~done~, then
             1. Return _list_.
-          1. If Type(_next_) is not String, then
+          1. If _next_ is not a String, then
             1. Let _error_ be ThrowCompletion(a newly created *TypeError* object).
             1. Return ? IteratorClose(_iteratorRecord_, _error_).
           1. Append _next_ to _list_.

spec/locale.html

@@ -22,10 +22,10 @@ <h1>Intl.Locale ( _tag_ [ , _options_ ] )</h1>
         1. If _relevantExtensionKeys_ contains *"kf"*, then
           1. Append [[CaseFirst]] to _internalSlotsList_.
         1. If _relevantExtensionKeys_ contains *"kn"*, then
-          1. Append [[Numeric]] to _internalSlotsList_.
+          1. Append [[Numeric]] as the last element of _internalSlotsList_.
         1. Let _locale_ be ? OrdinaryCreateFromConstructor(NewTarget, *"%Intl.Locale.prototype%"*, _internalSlotsList_).
-        1. If Type(_tag_) is not String or Object, throw a *TypeError* exception.
-        1. If Type(_tag_) is Object and _tag_ has an [[InitializedLocale]] internal slot, then
+        1. If _tag_ is not a String and _tag_ is not an Object, throw a *TypeError* exception.
+        1. If _tag_ is an Object and _tag_ has an [[InitializedLocale]] internal slot, then
           1. Let _tag_ be _tag_.[[Locale]].
         1. Else,
           1. Let _tag_ be ? ToString(_tag_).
@@ -135,7 +135,7 @@ <h1>
           1. Assert: _options_ has a field [[&lt;_key_&gt;]].
           1. Let _optionsValue_ be _options_.[[&lt;_key_&gt;]].
           1. If _optionsValue_ is not *undefined*, then
-            1. Assert: Type(_optionsValue_) is String.
+            1. Assert: _optionsValue_ is a String.
             1. Set _value_ to _optionsValue_.
             1. If _entry_ is not ~empty~, then
               1. Set _entry_.[[Value]] to _value_.

spec/negotiation.html

@@ -53,7 +53,7 @@ <h1>
         1. If _locales_ is *undefined*, then
           1. Return a new empty List.
         1. Let _seen_ be a new empty List.
-        1. If Type(_locales_) is String or Type(_locales_) is Object and _locales_ has an [[InitializedLocale]] internal slot, then
+        1. If _locales_ is a String or _locales_ is an Object and _locales_ has an [[InitializedLocale]] internal slot, then
           1. Let _O_ be CreateArrayFromList(&laquo; _locales_ &raquo;).
         1. Else,
           1. Let _O_ be ? ToObject(_locales_).
@@ -64,8 +64,8 @@ <h1>
           1. Let _kPresent_ be ? HasProperty(_O_, _Pk_).
           1. If _kPresent_ is *true*, then
             1. Let _kValue_ be ? Get(_O_, _Pk_).
-            1. If Type(_kValue_) is not String or Object, throw a *TypeError* exception.
-            1. If Type(_kValue_) is Object and _kValue_ has an [[InitializedLocale]] internal slot, then
+            1. If _kValue_ is not a String and _kValue_ is not an Object, throw a *TypeError* exception.
+            1. If _kValue_ is an Object and _kValue_ has an [[InitializedLocale]] internal slot, then
               1. Let _tag_ be _kValue_.[[Locale]].
             1. Else,
               1. Let _tag_ be ? ToString(_kValue_).
@@ -225,9 +225,9 @@ <h1>
         1. Let _supportedExtension_ be *"-u"*.
         1. For each element _key_ of _relevantExtensionKeys_, do
           1. Let _keyLocaleData_ be _foundLocaleData_.[[&lt;_key_&gt;]].
-          1. Assert: Type(_keyLocaleData_) is List.
+          1. Assert: _keyLocaleData_ is a List.
           1. Let _value_ be _keyLocaleData_[0].
-          1. Assert: Type(_value_) is either String or Null.
+          1. Assert: _value_ is a String or _value_ is *null*.
           1. Let _supportedExtensionAddition_ be *""*.
           1. If _r_.[[extension]] is not ~empty~, then
             1. If _keywords_ contains an element whose [[Key]] is the same as _key_, then
@@ -242,8 +242,8 @@ <h1>
                 1. Set _supportedExtensionAddition_ to the string-concatenation of *"-"* and _key_.
           1. Assert: _options_ has a field [[&lt;_key_&gt;]].
           1. Let _optionsValue_ be _options_.[[&lt;_key_&gt;]].
-          1. Assert: Type(_optionsValue_) is either String, Undefined, or Null.
-          1. If Type(_optionsValue_) is String, then
+          1. Assert: _optionsValue_ is a String, or _optionsValue_ is either *undefined* or *null*.
+          1. If _optionsValue_ is a String, then
             1. Let _ukey_ be the ASCII-lowercase of _key_.
             1. Let _optionsUValue_ be the ASCII-lowercase of _optionsValue_.
             1. Set _optionsValue_ to the String value resulting from canonicalizing _optionsUValue_ as a value of key _ukey_ per <a href="https://unicode.org/reports/tr35/#processing-localeids">Unicode Technical Standard #35 Part 1 Core, Annex C LocaleId Canonicalization Section 5 Canonicalizing Syntax, Processing LocaleIds</a>.
@@ -306,7 +306,7 @@ <h1>
       <emu-alg>
         1. If _options_ is *undefined*, then
           1. Return OrdinaryObjectCreate(*null*).
-        1. If Type(_options_) is Object, then
+        1. If _options_ is an Object, then
           1. Return _options_.
         1. Throw a *TypeError* exception.
       </emu-alg>

spec/numberformat.html

@@ -725,7 +725,7 @@ <h1>Number Format Functions</h1>
 
       <emu-alg>
         1. Let _nf_ be _F_.[[NumberFormat]].
-        1. Assert: Type(_nf_) is Object and _nf_ has an [[InitializedNumberFormat]] internal slot.
+        1. Assert: _nf_ is an Object and _nf_ has an [[InitializedNumberFormat]] internal slot.
         1. If _value_ is not provided, let _value_ be *undefined*.
         1. Let _x_ be ? ToIntlMathematicalValue(_value_).
         1. Return FormatNumeric(_nf_, _x_).
@@ -1430,7 +1430,7 @@ <h1>
         </dd>
       </dl>
       <emu-alg>
-        1. If Type(_nf_) is not Object, throw a *TypeError* exception.
+        1. If _nf_ is not an Object, throw a *TypeError* exception.
         1. If _nf_ does not have an [[InitializedNumberFormat]] internal slot and ? OrdinaryHasInstance(%Intl.NumberFormat%, _nf_) is *true*, then
           1. Return ? Get(_nf_, %Intl%.[[FallbackSymbol]]).
         1. Return _nf_.
@@ -1688,8 +1688,8 @@ <h1>
       </dl>
       <emu-alg>
         1. Let _primValue_ be ? ToPrimitive(_value_, ~number~).
-        1. If Type(_primValue_) is BigInt, return ℝ(_primValue_).
-        1. If Type(_primValue_) is String, then
+        1. If _primValue_ is a BigInt, return ℝ(_primValue_).
+        1. If _primValue_ is a String, then
           1. Let _str_ be _primValue_.
         1. Else,
           1. Let _x_ be ? ToNumber(_primValue_).