[PATCH v4 1/8] Don't call add_dependence from index_imported_unit

[Tom Tromey <tom@tromey.com>]

cooked_indexer::index_imported_unit calls add_dependence.  However,
this field is only needed during full symbol reading.  Remove this
call.
---
 gdb/dwarf2/cooked-indexer.c | 6 +-----
 gdb/dwarf2/cu.h             | 6 +++---
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/gdb/dwarf2/cooked-indexer.c b/gdb/dwarf2/cooked-indexer.c
index 40f62de80eb..3221ccd34f8 100644
--- a/gdb/dwarf2/cooked-indexer.c
+++ b/gdb/dwarf2/cooked-indexer.c
@@ -430,11 +430,7 @@ cooked_indexer::index_imported_unit (cutu_reader *reader,
   cutu_reader *new_reader
     = ensure_cu_exists (reader, *target, true);
   if (new_reader != nullptr)
-    {
-      index_dies (new_reader, new_reader->info_ptr (), nullptr, false);
-
-      reader->cu ()->add_dependence (new_reader->cu ()->per_cu);
-    }
+    index_dies (new_reader, new_reader->info_ptr (), nullptr, false);
 
   return info_ptr;
 }
diff --git a/gdb/dwarf2/cu.h b/gdb/dwarf2/cu.h
index 1361898accc..8ece6ddc010 100644
--- a/gdb/dwarf2/cu.h
+++ b/gdb/dwarf2/cu.h
@@ -300,9 +300,9 @@ struct dwarf2_cu
      symbols are being read.  */
   buildsym_compunit_up m_builder;
 
-  /* A set of pointers to dwarf2_per_cu objects for compilation units referenced
-     by this one.  Only used during full symbol processing; partial symbol
-     tables do not have dependencies.  */
+  /* A set of pointers to dwarf2_per_cu objects for compilation units
+     referenced by this one.  Only used during full symbol
+     processing.  */
   gdb::unordered_set<dwarf2_per_cu *> m_dependencies;
 
 public:

-- 
2.49.0