Use ElementType consistently.
Fixes #173.
R=r, rsc, r1
https://golang.org/cl/154156
diff --git a/doc/go_spec.html b/doc/go_spec.html
index c533f0a..cba73ce 100644
--- a/doc/go_spec.html
+++ b/doc/go_spec.html
@@ -966,7 +966,7 @@
<p>
A map is an unordered group of elements of one type, called the
-value type, indexed by a set of unique <i>keys</i> of another type,
+element type, indexed by a set of unique <i>keys</i> of another type,
called the key type.
A map value may be <code>nil</code>.
@@ -975,7 +975,6 @@
<pre class="ebnf">
MapType = "map" "[" KeyType "]" ElementType .
KeyType = Type .
-ValueType = Type .
</pre>
<p>
@@ -1030,9 +1029,9 @@
<pre class="ebnf">
ChannelType = Channel | SendChannel | RecvChannel .
-Channel = "chan" ValueType .
-SendChannel = "chan" "<-" ValueType .
-RecvChannel = "<-" "chan" ValueType .
+Channel = "chan" ElementType .
+SendChannel = "chan" "<-" ElementType .
+RecvChannel = "<-" "chan" ElementType .
</pre>
<p>