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/Process/minidump/ProcessMinidump.cpp b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
index f3f4664..d4d65c0 100644
--- a/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
+++ b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp
@@ -113,8 +113,8 @@
   PluginManager::UnregisterPlugin(ProcessMinidump::CreateInstance);
 }
 
-Error ProcessMinidump::DoLoadCore() {
-  Error error;
+Status ProcessMinidump::DoLoadCore() {
+  Status error;
 
   m_thread_list = m_minidump_parser.GetThreads();
   m_active_exception = m_minidump_parser.GetExceptionStream();
@@ -141,7 +141,7 @@
 
 uint32_t ProcessMinidump::GetPluginVersion() { return 1; }
 
-Error ProcessMinidump::DoDestroy() { return Error(); }
+Status ProcessMinidump::DoDestroy() { return Status(); }
 
 void ProcessMinidump::RefreshStateAfterStop() {
   if (!m_active_exception)
@@ -184,14 +184,14 @@
 bool ProcessMinidump::WarnBeforeDetach() const { return false; }
 
 size_t ProcessMinidump::ReadMemory(lldb::addr_t addr, void *buf, size_t size,
-                                   Error &error) {
+                                   Status &error) {
   // Don't allow the caching that lldb_private::Process::ReadMemory does
   // since we have it all cached in our dump file anyway.
   return DoReadMemory(addr, buf, size, error);
 }
 
 size_t ProcessMinidump::DoReadMemory(lldb::addr_t addr, void *buf, size_t size,
-                                     Error &error) {
+                                     Status &error) {
 
   llvm::ArrayRef<uint8_t> mem = m_minidump_parser.GetMemory(addr, size);
   if (mem.empty()) {
@@ -215,9 +215,9 @@
   return ArchSpec(triple);
 }
 
-Error ProcessMinidump::GetMemoryRegionInfo(lldb::addr_t load_addr,
-                                           MemoryRegionInfo &range_info) {
-  Error error;
+Status ProcessMinidump::GetMemoryRegionInfo(lldb::addr_t load_addr,
+                                            MemoryRegionInfo &range_info) {
+  Status error;
   auto info = m_minidump_parser.GetMemoryRegionInfo(load_addr);
   if (!info) {
     error.SetErrorString("No valid MemoryRegionInfo found!");
@@ -278,7 +278,7 @@
 
     const auto file_spec = FileSpec(name.getValue(), true);
     ModuleSpec module_spec = file_spec;
-    Error error;
+    Status error;
     lldb::ModuleSP module_sp = GetTarget().GetSharedModule(module_spec, &error);
     if (!module_sp || error.Fail()) {
       continue;