Fixed a ton of gcc compile warnings

Removed some unused variables, added some consts, changed some casts
to const_cast. I don't think any of these changes are very
controversial.

Differential Revision: http://reviews.llvm.org/D9674

llvm-svn: 237218
diff --git a/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp b/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
index cb987ac..303f1e2 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessLinux.cpp
@@ -49,7 +49,7 @@
 ProcessSP
 ProcessLinux::CreateInstance(Target &target, Listener &listener, const FileSpec *core_file)
 {
-    return ProcessSP(new ProcessLinux(target, listener, (FileSpec *)core_file));
+    return ProcessSP(new ProcessLinux(target, listener, core_file));
 }
 
 void
@@ -68,7 +68,7 @@
 //------------------------------------------------------------------------------
 // Constructors and destructors.
 
-ProcessLinux::ProcessLinux(Target& target, Listener &listener, FileSpec *core_file)
+ProcessLinux::ProcessLinux(Target& target, Listener &listener, const FileSpec *core_file)
     : ProcessPOSIX(target, listener, GetStaticLinuxSignalsSP ()), m_core_file(core_file), m_stopping_threads(false)
 {
 #if 0
diff --git a/lldb/source/Plugins/Process/Linux/ProcessLinux.h b/lldb/source/Plugins/Process/Linux/ProcessLinux.h
index 1d8232d..0abc023 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessLinux.h
+++ b/lldb/source/Plugins/Process/Linux/ProcessLinux.h
@@ -53,7 +53,7 @@
     //------------------------------------------------------------------
     ProcessLinux(Target& target,
                  Listener &listener,
-                 FileSpec *core_file);
+                 const FileSpec *core_file);
 
     Error
     DoDetach(bool keep_stopped) override;
@@ -98,7 +98,7 @@
 
 private:
 
-    FileSpec *m_core_file;
+    const FileSpec *m_core_file;
 
     // Flag to avoid recursion when stopping all threads.
     bool m_stopping_threads;
diff --git a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
index b8f2a3f..c08c46e 100644
--- a/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
+++ b/lldb/source/Plugins/Process/Linux/ProcessMonitor.cpp
@@ -351,7 +351,7 @@
                  (log->GetMask().Test(POSIX_LOG_MEMORY_DATA_SHORT) &&
                   size <= POSIX_LOG_MEMORY_SHORT_BYTES)))
                  log->Printf ("ProcessMonitor::%s() [%p]:0x%lx (0x%lx)", __FUNCTION__,
-                              (void*)vm_addr, *(unsigned long*)src, *(unsigned long*)buff);
+                              (void*)vm_addr, *(const unsigned long*)src, *(const unsigned long*)buff);
         }
 
         vm_addr += word_size;