Make innerText locator work with non-element nodes (#705)

* Make innerText locator work with non-element nodes

* Update index.bs

Co-authored-by: Maksim Sadym <[email protected]>

* Update index.bs

---------

Co-authored-by: Maksim Sadym <[email protected]>

Author: OrKoN

index.bs

@@ -3384,6 +3384,21 @@ To <dfn>locate nodes using inner text</dfn> with given |context nodes|,
 
 1. For each |context node| in |context nodes|:
 
+  1. If |context node| implements {{Document}} or {{DocumentFragment}}:
+
+    1. Let |child nodes| be an empty [=/list=].
+
+    1. For each node |child| in the <a spec=dom>children</a> of |context node|.
+
+      1. [=list/Append=] |child| to |child nodes|.
+
+    1. Let |child max depth| be null if |max depth| is null, or |max depth| - 1 otherwise.
+
+    1. [=Extend=] |returned nodes| with the result of [=trying=] to [=locate nodes using inner text=]
+      with |child nodes|, |selector|, |child max depth|, |match type|, |ignore case|, and |maximum returned node count|.
+
+  1. If |context node| does not implement {{HTMLElement}} then [=continue=].
+
   1. Let |node inner text| be the result of calling the [=innerText getter steps=] with
      |context node| as the [=this=] value.
 
@@ -3397,7 +3412,7 @@ To <dfn>locate nodes using inner text</dfn> with given |context nodes|,
     1. Let |child nodes| be an empty [=/list=] and, for each node |child| in the
        <a spec=dom>children</a> of |context node|:
 
-      1. If |child| implements {{Element}}, [=list/append=] |child| to |child nodes|.
+      1. [=list/Append=] |child| to |child nodes|.
 
     1. If [=list/size=] of |child nodes| is equal to 0 or |max depth| is equal to 0,
        perform the following steps:
@@ -3410,12 +3425,10 @@ To <dfn>locate nodes using inner text</dfn> with given |context nodes|,
 
     1. Otherwise, perform the following steps:
 
-      1. If |max depth| is not null:
-
-        1. Set |max depth| to |max depth| - 1.
+      1. Let |child max depth| be null if |max depth| is null, or |max depth| - 1 otherwise.
 
       1. Let |child node matches| be the result of [=locate nodes using inner text=]
-         with |child nodes|, |selector|, |max depth|, |match type|,
+         with |child nodes|, |selector|, |child max depth| , |match type|,
          |ignore case|, and |maximum returned node count|.
 
       1. If [=list/size=] of |child node matches| is equal to 0 and |match type| is