[PATCH] Rename demangle.c to gdb-demangle.c, and some cleanup

["Christian Biesinger via gdb-patches" <gdb-patches@sourceware.org>]

In addition to renaming demangle.c to match the header file naming,
this also makes is_cplus_marker return a bool and removes a duplicate
declaration of "bool demangle" from symtab.h.

gdb/ChangeLog:

2019-11-21  Christian Biesinger  <cbiesinger@google.com>

	* Makefile.in: Update.
	* demangle.c: Rename to...
	* gdb-demangle.c: ..this.
	(is_cplus_marker): Change return type to bool.
	(_initialize_demangler): Rename to...
	(_initialize_gdb_demangle): ...this.
	* gdb-demangle.h (is_cplus_marker): Change return type to bool.
	* symtab.h (demangle): Remove declaration; instead include
	gdb-demangle.h.

Change-Id: I83c3b3f7ee71b2bf6f5b5d0f9eb1d4b5208f2a97
---
 gdb/Makefile.in                    | 2 +-
 gdb/{demangle.c => gdb-demangle.c} | 4 ++--
 gdb/gdb-demangle.h                 | 2 +-
 gdb/symtab.h                       | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)
 rename gdb/{demangle.c => gdb-demangle.c} (99%)

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 5a4ffd5a81..600ebabb1f 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -1009,7 +1009,6 @@ COMMON_SFILES = \
 	dbxread.c \
 	dcache.c \
 	debug.c \
-	demangle.c \
 	dictionary.c \
 	disasm.c \
 	disasm-selftests.c \
@@ -1040,6 +1039,7 @@ COMMON_SFILES = \
 	frame-base.c \
 	frame-unwind.c \
 	gcore.c \
+	gdb-demangle.c \
 	gdb_bfd.c \
 	gdb_obstack.c \
 	gdb_regex.c \
diff --git a/gdb/demangle.c b/gdb/gdb-demangle.c
similarity index 99%
rename from gdb/demangle.c
rename to gdb/gdb-demangle.c
index d8b03104d7..2ed64d4e5b 100644
--- a/gdb/demangle.c
+++ b/gdb/gdb-demangle.c
@@ -149,7 +149,7 @@ static char cplus_markers[] = {'$', '.', '\0'};
 
 /* See documentation in gdb-demangle.h.  */
 
-int
+bool
 is_cplus_marker (int c)
 {
   return c && strchr (cplus_markers, c) != NULL;
@@ -213,7 +213,7 @@ demangle_command (const char *args, int from_tty)
 }
 
 void
-_initialize_demangler (void)
+_initialize_gdb_demangle (void)
 {
   int i, ndems;
 
diff --git a/gdb/gdb-demangle.h b/gdb/gdb-demangle.h
index 327a63313b..e68973f5b3 100644
--- a/gdb/gdb-demangle.h
+++ b/gdb/gdb-demangle.h
@@ -29,6 +29,6 @@ extern bool demangle;
 extern bool asm_demangle;
 
 /* Check if a character is one of the commonly used C++ marker characters.  */
-extern int is_cplus_marker (int);
+extern bool is_cplus_marker (int);
 
 #endif /* GDB_DEMANGLE_H */
diff --git a/gdb/symtab.h b/gdb/symtab.h
index 1e82182df7..8f95a3a4d2 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -33,6 +33,7 @@
 #include "gdbsupport/gdb_string_view.h"
 #include "gdbsupport/next-iterator.h"
 #include "completer.h"
+#include "gdb-demangle.h"
 
 /* Opaque declarations.  */
 struct ui_file;
@@ -553,7 +554,6 @@ extern const char *symbol_demangled_name
 
 #define SYMBOL_PRINT_NAME(symbol)					\
   (demangle ? SYMBOL_NATURAL_NAME (symbol) : SYMBOL_LINKAGE_NAME (symbol))
-extern bool demangle;
 
 /* Macro that returns the name to be used when sorting and searching symbols.
    In C++, we search for the demangled form of a name,
-- 
2.24.0.432.g9d3f5f5b63-goog