Add logging to WatchpointAlgorithm

When verbose lldb watch channel is enabled, print the
user requested watchpoint and the resources we've
broken it up into.

Author: jasonmolenda

lldb/source/Breakpoint/WatchpointAlgorithms.cpp

@@ -10,6 +10,8 @@
 #include "lldb/Breakpoint/WatchpointResource.h"
 #include "lldb/Target/Process.h"
 #include "lldb/Utility/ArchSpec.h"
+#include "lldb/Utility/LLDBLog.h"
+#include "lldb/Utility/Log.h"
 
 #include <utility>
 #include <vector>
@@ -41,8 +43,13 @@ WatchpointAlgorithms::AtomizeWatchpointRequest(
                             /*address_byte_size*/ arch.GetAddressByteSize());
   }
 
+  Log *log = GetLog(LLDBLog::Watchpoints);
+  LLDB_LOGV(log, "AtomizeWatchpointRequest user request addr {0:x} size {1}",
+            addr, size);
   std::vector<WatchpointResourceSP> resources;
   for (Region &ent : entries) {
+    LLDB_LOGV(log, "AtomizeWatchpointRequest creating resource {0:x} size {1}",
+              ent.addr, ent.size);
     WatchpointResourceSP wp_res_sp =
         std::make_shared<WatchpointResource>(ent.addr, ent.size, read, write);
     resources.push_back(wp_res_sp);