Polishing: generate more warnings and make code warnings-free.

server-tools/instance-manager/Makefile.am:
  Generate more warnings.
server-tools/instance-manager/commands.cc:
  Eliminate warnings.
server-tools/instance-manager/commands.h:
  Eliminate warnings.
server-tools/instance-manager/instance.cc:
  Eliminate warnings.
server-tools/instance-manager/mysql_connection.cc:
  Eliminate warnings.
server-tools/instance-manager/parse.cc:
  Eliminate warnings.
server-tools/instance-manager/user_map.cc:
  Eliminate warnings.
server-tools/instance-manager/user_map.h:
  Eliminate warnings.

1 files changed, 20 insertions, 0 deletions

diff --git a/server-tools/instance-manager/commands.h b/server-tools/instance-manager/commands.h
index cf753d8368c..e275c7c2549 100644
--- a/server-tools/instance-manager/commands.h
+++ b/server-tools/instance-manager/commands.h
@@ -38,6 +38,10 @@
 class Show_instances : public Command
 {
 public:
+  Show_instances()
+  { }
+
+public:
   int execute(st_net *net, ulong connection_id);
 
 private:
@@ -54,6 +58,10 @@ private:
 class Flush_instances : public Command
 {
 public:
+  Flush_instances()
+  { }
+
+public:
   int execute(st_net *net, ulong connection_id);
 };
 
@@ -311,6 +319,10 @@ private:
 
 class Set_option : public Abstract_option_cmd
 {
+public:
+  Set_option()
+  { }
+
 protected:
   virtual bool parse_args(const char **text);
   virtual int process_option(Instance *instance, Named_value *option);
@@ -324,6 +336,10 @@ protected:
 
 class Unset_option: public Abstract_option_cmd
 {
+public:
+  Unset_option()
+  { }
+
 protected:
   virtual bool parse_args(const char **text);
   virtual int process_option(Instance *instance, Named_value *option);
@@ -342,6 +358,10 @@ protected:
 class Syntax_error : public Command
 {
 public:
+  Syntax_error()
+  { }
+
+public:
   int execute(st_net *net, ulong connection_id);
 };