Rename Error -> Status.

This renames the LLDB error class to Status, as discussed
on the lldb-dev mailing list.

A change of this magnitude cannot easily be done without
find and replace, but that has potential to catch unwanted
occurrences of common strings such as "Error".  Every effort
was made to find all the obvious things such as the word "Error"
appearing in a string, etc, but it's possible there are still
some lingering occurences left around.  Hopefully nothing too
serious.

llvm-svn: 302872
diff --git a/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetThreadItemInfoHandler.cpp b/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetThreadItemInfoHandler.cpp
index c3c0f44..8d83922 100644
--- a/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetThreadItemInfoHandler.cpp
+++ b/lldb/source/Plugins/SystemRuntime/MacOSX/AppleGetThreadItemInfoHandler.cpp
@@ -161,7 +161,7 @@
     // First stage is to make the ClangUtility to hold our injected function:
 
     if (!m_get_thread_item_info_impl_code.get()) {
-      Error error;
+      Status error;
       if (g_get_thread_item_info_function_code != NULL) {
         m_get_thread_item_info_impl_code.reset(
             exe_ctx.GetTargetRef().GetUtilityFunctionForLanguage(
@@ -243,7 +243,7 @@
                                                  tid_t thread_id,
                                                  addr_t page_to_free,
                                                  uint64_t page_to_free_size,
-                                                 Error &error) {
+                                                 Status &error) {
   lldb::StackFrameSP thread_cur_frame = thread.GetStackFrameAtIndex(0);
   ProcessSP process_sp(thread.CalculateProcess());
   TargetSP target_sp(thread.CalculateTarget());