[spec] Add note regarding parameter names (WebAssembly#1412)

rossberg · web-flow · commit f2086a49a9a6 · 2022-01-28T08:35:45.000+01:00
diff --git a/document/core/text/types.rst b/document/core/text/types.rst
@@ -93,6 +93,10 @@ Function Types
        &\Rightarrow& t \\
    \end{array}
 
+.. note::
+   The optional identifier names for parameters in a function type only have documentation purpose.
+   They cannot be referenced from anywhere.
+
 
 Abbreviations
 .............
