[std] Avoid hanging paragraphs by introducing "General" subclauses

Fixes ISO/CS comment (C++23 proof)

Author: jensmaurer

source/expressions.tex

@@ -1207,6 +1207,8 @@
 \rSec1[expr.prim]{Primary expressions}%
 \indextext{expression!primary|(}
 
+\rSec2[expr.prim.grammar]{Grammar}
+
 \begin{bnf}
 \nontermdef{primary-expression}\br
     literal\br

source/iostreams.tex

@@ -1645,6 +1645,8 @@
 
 \rSec2[fpos]{Class template \tcode{fpos}}
 
+\rSec3[fpos.general]{General}
+
 \indexlibraryglobal{fpos}%
 \begin{codeblock}
 namespace std {

source/iterators.tex

@@ -3842,6 +3842,8 @@
 
 \rSec3[back.insert.iterator]{Class template \tcode{back_insert_iterator}}
 
+\rSec4[back.insert.iter.general]{General}
+
 \indexlibraryglobal{back_insert_iterator}%
 \begin{codeblock}
 namespace std {
@@ -3953,6 +3955,8 @@
 
 \rSec3[front.insert.iterator]{Class template \tcode{front_insert_iterator}}
 
+\rSec4[front.insert.iter.general]{General}
+
 \indexlibraryglobal{front_insert_iterator}%
 \begin{codeblock}
 namespace std {
@@ -4064,6 +4068,8 @@
 
 \rSec3[insert.iterator]{Class template \tcode{insert_iterator}}
 
+\rSec4[insert.iter.general]{General}
+
 \indexlibraryglobal{insert_iterator}%
 \begin{codeblock}
 namespace std {

source/locales.tex

@@ -3614,6 +3614,8 @@
 
 \rSec3[locale.time.put]{Class template \tcode{time_put}}
 
+\rSec4[locale.time.put.general]{General}
+
 \indexlibraryglobal{time_put}%
 \begin{codeblock}
 namespace std {
@@ -3778,6 +3780,8 @@
 
 \rSec3[locale.money.get]{Class template \tcode{money_get}}
 
+\rSec4[locale.money.get.general]{General}
+
 \indexlibraryglobal{money_get}%
 \begin{codeblock}
 namespace std {
@@ -3945,6 +3949,8 @@
 
 \rSec3[locale.money.put]{Class template \tcode{money_put}}
 
+\rSec4[locale.money.put.general]{General}
+
 \indexlibraryglobal{money_put}%
 \begin{codeblock}
 namespace std {

source/support.tex

@@ -5569,6 +5569,8 @@
 
 \rSec3[coroutine.handle.noop]{Class \tcode{coroutine_handle<noop_coroutine_promise>}}
 
+\rSec4[coroutine.handle.noop.general]{General}
+
 \indexlibraryglobal{coroutine_handle<noop_coroutine_promise>}%
 \begin{codeblock}
 namespace std {