fixup! [js-api] Add support for exceptions.

Author: Ms2ger

document/js-api/index.bs

@@ -402,7 +402,7 @@ A {{Module}} object represents a single WebAssembly module. Each {{Module}} obje
             1. [=list/Append=] |externtable| to |imports|.
         1. If |externtype| is of the form [=externtype/tag=] |attribute| <var ignore>functype</var>,
             1. Assert: |attribute| is [=tagtype/attribute/exception=].
-            1. If |v| does not [=implement=] {{Exception}}, throw a {{LinkError}} exception.
+            1. If |v| does not [=implement=] {{Tag}}, throw a {{LinkError}} exception.
             1. Let |tag| be |v|.\[[Address]].
             1. Let |extern| be the [=external value=] [=external value/tag=] |tag|.
             1. [=list/Append=] |extern| to |imports|.
@@ -443,7 +443,7 @@ The verification of WebAssembly type requirements is deferred to the
             1. Assert: |attribute| is [=tagtype/attribute/exception=].
             1. Assert: |externval| is of the form [=external value/tag=] |tagaddr|.
             1. Let [=external value/tag=] |tagaddr| be |externval|.
-            1. Let |exception| be [=create an Exception object|a new Exception object=] created from |tagaddr|.
+            1. Let |exception| be [=create a Tag object|a new Tag object=] created from |tagaddr|.
             1. Let |value| be |exception|.
         1. Let |status| be ! [=CreateDataProperty=](|exportsObject|, |name|, |value|).
         1. Assert: |status| is true.
@@ -1205,7 +1205,7 @@ The <dfn method for="Tag">type()</dfn> method steps are:
 1. Let |idlParameters| be «».
 1. [=list/iterate|For each=] |type| of |parameters|,
     1. [=list/Append=] [$FromValueType$](|type|) to |idlParameters|.
-1. Return «[ "{{ExceptionType/parameters}}" → |idlParameters| ]».
+1. Return «[ "{{TagType/parameters}}" → |idlParameters| ]».
 
 </div>
 
@@ -1228,7 +1228,7 @@ To <dfn>create a RuntimeException object</dfn> from a [=tag address=] |tagAddres
 of WebAssembly values |payload|, perform the following steps:
 
 1. Let |store| be the [=surrounding agent=]'s [=associated store=].
-1. Let |types| be [=exception_parameters=](|store|, |tagAddress|).
+1. Let |types| be [=tag_parameters=](|store|, |tagAddress|).
 1. Assert: |types|'s [=list/size=] is |payload|'s [=list/size=].
 1. [=list/iterate|For each=] |value| and |resultType| of |payload| and |types|, paired linearly,
     1. Assert: |value|'s type matches |resultType|.
@@ -1242,16 +1242,16 @@ of WebAssembly values |payload|, perform the following steps:
 <div algorithm>
 
 The <dfn constructor for=RuntimeException
-lt="RuntimeException(exceptionType, payload)">new RuntimeException(|exceptionTag|, |payload|)</dfn>
+lt="RuntimeException(exceptionTag, payload)">new RuntimeException(|exceptionTag|, |payload|)</dfn>
 constructor steps are:
 
-1. Let |types| be [=exception_parameters=](|exceptionTag|.\[[Address]]).
+1. Let |types| be [=tag_parameters=](|exceptionTag|.\[[Address]]).
 1. If |types|'s [=list/size=] is not |payload|'s [=list/size=],
     1. Throw a {{TypeError}}.
 1. Let |wasmPayload| be « ».
 1. [=list/iterate|For each=] |value| and |resultType| of |payload| and |types|, paired linearly,
     1. [=list/Append=] ? [=ToWebAssemblyValue=](|value|, |resultType|) to |wasmPayload|.
-1. Set **this**.\[[Type]] to |exceptionType|.\[[Address]].
+1. Set **this**.\[[Type]] to |exceptionTag|.\[[Address]].
 1. Set **this**.\[[Payload]] to |wasmPayload|.
 
 </div>
@@ -1285,7 +1285,7 @@ The <dfn>JavaScript exception tag</dfn> is a [=tag address=] reserved by this
 specification to distinguish exceptions originating from JavaScript.
 
 For any [=associated store=] |store|, the result of
-[=exception_parameters=](|store|, [=JavaScript exception tag=]) must be « [=externref=] ».
+[=tag_parameters=](|store|, [=JavaScript exception tag=]) must be « [=externref=] ».
 
 Issue: Should it be possible for `br_on_exn` to extract the payload from an exception with this tag?