Fixed compiler warnings detected by option -Wshadow and -Wunused:

- Removed not used variables and functions
- Added #ifdef around code that is not used
- Renamed variables and functions to avoid conflicts
- Removed some not used arguments

Fixed some class/struct warnings in ndb
Added define IS_LONGDATA() to simplify code in libmysql.c

I did run gcov on the changes and added 'purecov' comments on almost all lines that was not just variable name changes

1 files changed, 2 insertions, 0 deletions

diff --git a/ndb/src/ndbapi/SignalSender.cpp b/ndb/src/ndbapi/SignalSender.cpp
index 0ecc98f5f29..492a5193f89 100644
--- a/ndb/src/ndbapi/SignalSender.cpp
+++ b/ndb/src/ndbapi/SignalSender.cpp
@@ -173,6 +173,7 @@ SignalSender::waitFor(Uint32 timeOutMillis, T & t)
 
 class WaitForAny {
 public:
+  WaitForAny() {}
   SimpleSignal * check(Vector<SimpleSignal*> & m_jobBuffer){
     if(m_jobBuffer.size() > 0){
       SimpleSignal * s = m_jobBuffer[0];
@@ -192,6 +193,7 @@ SignalSender::waitFor(Uint32 timeOutMillis){
 
 class WaitForNode {
 public:
+  WaitForNode() {}
   Uint32 m_nodeId;
   SimpleSignal * check(Vector<SimpleSignal*> & m_jobBuffer){
     Uint32 len = m_jobBuffer.size();