[ranges] Improve indentation around "using Base" and "using Parent" declarations

Author: burblebee

source/ranges.tex

@@ -3753,13 +3753,10 @@
   template<bool Const>
   class transform_view<V, F>::@\exposid{iterator}@ {
   private:
-    using @\exposid{Parent}@ =                              // \expos
-      @\exposid{maybe-const}@<Const, transform_view>;
-    using @\exposid{Base}@   =                              // \expos
-      @\exposid{maybe-const}@<Const, V>;
-    iterator_t<@\exposid{Base}@> @\exposid{current_}@ =                 // \expos
-      iterator_t<@\exposid{Base}@>();
-    @\exposid{Parent}@* @\exposid{parent_}@ = nullptr;                  // \expos
+    using @\exposid{Parent}@ = @\exposid{maybe-const}@<Const, transform_view>;          // \expos
+    using @\exposid{Base}@ = @\exposid{maybe-const}@<Const, V>;                         // \expos
+    iterator_t<@\exposid{Base}@> @\exposid{current_}@ = iterator_t<@\exposid{Base}@>();             // \expos
+    @\exposid{Parent}@* @\exposid{parent_}@ = nullptr;                                  // \expos
   public:
     using iterator_concept  = @\seebelow@;
     using iterator_category = @\seebelow@;
@@ -4159,8 +4156,7 @@
   template<bool Const>
   class transform_view<V, F>::@\exposid{sentinel}@ {
   private:
-    using @\exposid{Parent}@ =                                      // \expos
-      @\exposid{maybe-const}@<Const, transform_view>;
+    using @\exposid{Parent}@ = @\exposid{maybe-const}@<Const, transform_view>;  // \expos
     using @\exposid{Base}@ = @\exposid{maybe-const}@<Const, V>;                 // \expos
     sentinel_t<@\exposid{Base}@> @\exposid{end_}@ = sentinel_t<@\exposid{Base}@>();         // \expos
   public:
@@ -5056,8 +5052,7 @@
   template<bool Const>
   struct join_view<V>::@\exposid{iterator}@ {
   private:
-    using @\exposid{Parent}@ =                                              // \expos
-      @\exposid{maybe-const}@<Const, join_view>;
+    using @\exposid{Parent}@ = @\exposid{maybe-const}@<Const, join_view>;               // \expos
     using @\exposid{Base}@   = @\exposid{maybe-const}@<Const, V>;                       // \expos
 
     static constexpr bool @\exposid{ref-is-glvalue}@ =                      // \expos
@@ -5368,9 +5363,8 @@
   template<bool Const>
   struct join_view<V>::@\exposid{sentinel}@ {
   private:
-    using @\exposid{Parent}@ =                                      // \expos
-      @\exposid{maybe-const}@<Const, join_view>;
-    using @\exposid{Base}@   = @\exposid{maybe-const}@<Const, V>;               // \expos
+    using @\exposid{Parent}@ = @\exposid{maybe-const}@<Const, join_view>;       // \expos
+    using @\exposid{Base}@ = @\exposid{maybe-const}@<Const, V>;                 // \expos
     sentinel_t<@\exposid{Base}@> @\exposid{end_}@ = sentinel_t<@\exposid{Base}@>();         // \expos
   public:
     @\exposid{sentinel}@() = default;
@@ -5567,13 +5561,10 @@
   template<bool Const>
   struct split_view<V, Pattern>::@\exposid{outer-iterator}@ {
   private:
-    using @\exposid{Parent}@ =                          // \expos
-      @\exposid{maybe-const}@<Const, split_view>;
-    using @\exposid{Base}@   =                          // \expos
-      @\exposid{maybe-const}@<Const, V>;
-    @\exposid{Parent}@* @\exposid{parent_}@ = nullptr;              // \expos
-    iterator_t<@\exposid{Base}@> @\exposid{current_}@ =             // \expos, present only if \tcode{V} models \libconcept{forward_range}
-      iterator_t<@\exposid{Base}@>();
+    using @\exposid{Parent}@ = @\exposid{maybe-const}@<Const, split_view>;      // \expos
+    using @\exposid{Base}@ = @\exposid{maybe-const}@<Const, V>;                 // \expos
+    @\exposid{Parent}@* @\exposid{parent_}@ = nullptr;                          // \expos
+    iterator_t<@\exposid{Base}@> @\exposid{current_}@ = iterator_t<@\exposid{Base}@>();     // \expos, present only if \tcode{V} models \libconcept{forward_range}
 
   public:
     using iterator_concept  =