[RFA 20/42] Use outermost_context_p in more places

[Tom Tromey <tom@tromey.com>]

This changes a few explicit checks of context_stack_depth to use
outermost_context_p instead.  This simplifies some future work.

gdb/ChangeLog
2018-05-22  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (read_xcoff_symtab): Use outermost_context_p.
	* dwarf2read.c (using_directives, new_symbol): Use
	outermost_context_p.
	* dbxread.c (process_one_symbol): Use outermost_context_p.
	* coffread.c (coff_symtab_read): Use outermost_context_p.
---
 gdb/ChangeLog    | 8 ++++++++
 gdb/coffread.c   | 8 ++++----
 gdb/dbxread.c    | 6 +++---
 gdb/dwarf2read.c | 4 ++--
 gdb/xcoffread.c  | 8 ++++----
 5 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/gdb/coffread.c b/gdb/coffread.c
index 2e5bf9bcab..85718b252a 100644
--- a/gdb/coffread.c
+++ b/gdb/coffread.c
@@ -1092,7 +1092,7 @@ coff_symtab_read (minimal_symbol_reader &reader,
 	      /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno
 	         contains number of lines to '}' */
 
-	      if (context_stack_depth <= 0)
+	      if (outermost_context_p ())
 		{	/* We attempted to pop an empty context stack.  */
 		  complaint (&symfile_complaints,
 			     _("`.ef' symbol without matching `.bf' "
@@ -1104,7 +1104,7 @@ coff_symtab_read (minimal_symbol_reader &reader,
 
 	      newobj = pop_context ();
 	      /* Stack must be empty now.  */
-	      if (context_stack_depth > 0 || newobj == NULL)
+	      if (!outermost_context_p () || newobj == NULL)
 		{
 		  complaint (&symfile_complaints,
 			     _("Unmatched .ef symbol(s) ignored "
@@ -1159,7 +1159,7 @@ coff_symtab_read (minimal_symbol_reader &reader,
 	    }
 	  else if (strcmp (cs->c_name, ".eb") == 0)
 	    {
-	      if (context_stack_depth <= 0)
+	      if (outermost_context_p ())
 		{	/* We attempted to pop an empty context stack.  */
 		  complaint (&symfile_complaints,
 			     _("`.eb' symbol without matching `.bb' "
@@ -1177,7 +1177,7 @@ coff_symtab_read (minimal_symbol_reader &reader,
 			     symnum);
 		  break;
 		}
-	      if (local_symbols && context_stack_depth > 0)
+	      if (local_symbols && !outermost_context_p ())
 		{
 		  tmpaddr =
 		    cs->c_value + ANOFFSET (objfile->section_offsets,
diff --git a/gdb/dbxread.c b/gdb/dbxread.c
index 127ae5bdf8..ed6e6be458 100644
--- a/gdb/dbxread.c
+++ b/gdb/dbxread.c
@@ -2557,7 +2557,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, const char *name,
 	     the current block.  */
 	  struct block *block;
 
- 	  if (context_stack_depth <= 0)
+	  if (outermost_context_p ())
  	    {
 	      lbrac_mismatch_complaint (symnum);
  	      break;
@@ -2626,7 +2626,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, const char *name,
 
       valu += function_start_offset;
 
-      if (context_stack_depth <= 0)
+      if (outermost_context_p ())
 	{
 	  lbrac_mismatch_complaint (symnum);
 	  break;
@@ -2950,7 +2950,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, const char *name,
 		  break;
 		}
 
-	      if (context_stack_depth > 0)
+	      if (!outermost_context_p ())
 		{
 		  struct block *block;
 
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index ec62a23091..b39c14365a 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -11140,7 +11140,7 @@ read_namespace_alias (struct die_info *die, struct dwarf2_cu *cu)
 static struct using_direct **
 using_directives (enum language language)
 {
-  if (language == language_ada && context_stack_depth == 0)
+  if (language == language_ada && outermost_context_p ())
     return get_global_using_directives ();
   else
     return get_local_using_directives ();
@@ -21472,7 +21472,7 @@ new_symbol (struct die_info *die, struct type *type, struct dwarf2_cu *cu,
 	     when we do not have enough information to show inlined frames;
 	     pretend it's a local variable in that case so that the user can
 	     still see it.  */
-	  if (context_stack_depth > 0
+	  if (!outermost_context_p ()
 	      && context_stack[context_stack_depth - 1].name != NULL)
 	    SYMBOL_IS_ARGUMENT (sym) = 1;
 	  attr = dwarf2_attr (die, DW_AT_location, cu);
diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
index 21d107f78d..89896baded 100644
--- a/gdb/xcoffread.c
+++ b/gdb/xcoffread.c
@@ -1395,7 +1395,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 	      /* { main_aux.x_sym.x_misc.x_lnsz.x_lnno
 	         contains number of lines to '}' */
 
-	      if (context_stack_depth <= 0)
+	      if (outermost_context_p ())
 		{	/* We attempted to pop an empty context stack.  */
 		  ef_complaint (cs->c_symnum);
 		  within_function = 0;
@@ -1403,7 +1403,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 		}
 	      newobj = pop_context ();
 	      /* Stack must be empty now.  */
-	      if (context_stack_depth > 0 || newobj == NULL)
+	      if (!outermost_context_p () || newobj == NULL)
 		{
 		  ef_complaint (cs->c_symnum);
 		  within_function = 0;
@@ -1488,7 +1488,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 	    }
 	  else if (strcmp (cs->c_name, ".eb") == 0)
 	    {
-	      if (context_stack_depth <= 0)
+	      if (outermost_context_p ())
 		{	/* We attempted to pop an empty context stack.  */
 		  eb_complaint (cs->c_symnum);
 		  break;
@@ -1499,7 +1499,7 @@ read_xcoff_symtab (struct objfile *objfile, struct partial_symtab *pst)
 		  eb_complaint (cs->c_symnum);
 		  break;
 		}
-	      if (local_symbols && context_stack_depth > 0)
+	      if (local_symbols && !outermost_context_p ())
 		{
 		  /* Make a block for the local symbols within.  */
 		  finish_block (newobj->name, &local_symbols,
-- 
2.13.6