[func.wrap.ref] Add references to [defns.expression.equivalent] on "expression-equivalent"

Author: burblebee

source/utilities.tex

@@ -13577,7 +13577,7 @@
 \exposid{thunk-ptr} with the address of a function \tcode{\placeholder{thunk}}
 such that
 \tcode{\placeholder{thunk}(\exposid{bound-entity}, \placeholder{call-args}...)}
-is expression-equivalent to
+is expression-equivalent\iref{defns.expression.equivalent} to
 \tcode{invoke_r<R>(f, \placeholder{call-args}...)}.
 \end{itemdescr}
 
@@ -13605,7 +13605,7 @@
 \exposid{thunk-ptr} with the address of a function \tcode{\placeholder{thunk}}
 such that
 \tcode{\placeholder{thunk}(\exposid{bound-entity}, \placeholder{call-args}...)}
-is expression-equivalent to
+is expression-equivalent\iref{defns.expression.equivalent} to
 \tcode{invoke_r<R>(static_cast<\cv{} T\&>(f), \placeholder{call-args}...)}.
 \end{itemdescr}
 
@@ -13635,7 +13635,7 @@
 \exposid{thunk-ptr} with the address of a function \tcode{\placeholder{thunk}}
 such that
 \tcode{\placeholder{thunk}(\exposid{bound-entity}, \placeholder{call-args}...)}
-is expression-equivalent to
+is expression-equivalent\iref{defns.expression.equivalent} to
 \tcode{invoke_r<R>(f, \placeholder{call-args}...)}.
 \end{itemdescr}
 
@@ -13669,7 +13669,7 @@
 \exposid{thunk-ptr} with the address of a function \tcode{\placeholder{thunk}}
 such that
 \tcode{\placeholder{thunk}(\exposid{bound-entity}, \placeholder{call-args}...)}
-is expression-equivalent to
+is expression-equivalent\iref{defns.expression.equivalent} to
 \tcode{invoke_r<R>(f, static_cast<\cv{} T\&>(obj), \placeholder{call-args}...)}.
 \end{itemdescr}
 
@@ -13704,7 +13704,7 @@
 \exposid{thunk-ptr} with the address of a function \tcode{\placeholder{thunk}}
 such that
 \tcode{\placeholder{thunk}(\exposid{bound-entity}, \placeholder{call-args}...)}
-is expression-equivalent to
+is expression-equivalent\iref{defns.expression.equivalent} to
 \tcode{invoke_r<R>(f, obj, \placeholder{call-args}...)}.
 \end{itemdescr}