Remove the clearly unnecessary parts from

dummy_scripted_process.py.  Add a comment in
ScriptedProcess::DoGetMemoryRegionInfo about
what types of memory regions are rejecting.

Author: jasonmolenda

lldb/source/Plugins/Process/scripted/ScriptedProcess.cpp

@@ -290,9 +290,11 @@ Status ScriptedProcess::DoGetMemoryRegionInfo(lldb::addr_t load_addr,
   if (auto region_or_err =
           GetInterface().GetMemoryRegionContainingAddress(load_addr, error)) {
     region = *region_or_err;
+    // Reject a region of {0,0} or {0,UINT64_MAX}, neither are
+    // meaningful responses.
     if (region.GetRange().GetRangeBase() == 0 &&
         (region.GetRange().GetByteSize() == 0 ||
-         region.GetRange().GetByteSize() == LLDB_INVALID_ADDRESS)) {
+         region.GetRange().GetByteSize() == UINT64_MAX)) {
       error = Status::FromErrorString(
           "Invalid memory region from scripted process");
     }

lldb/test/API/functionalities/scripted_process_empty_memory_region/dummy_scripted_process.py

@@ -7,17 +7,6 @@
 from lldb.plugins.scripted_process import ScriptedThread
 
 
-class DummyStopHook:
-    def __init__(self, target, args):
-        self.target = target
-        self.args = args
-
-    def handle_stop(self, exe_ctx, stream):
-        print("My DummyStopHook triggered. Printing args: \n%s" % self.args)
-        sp = exe_ctx.process.GetScriptedImplementation()
-        sp.handled_stop = True
-
-
 class DummyScriptedProcess(ScriptedProcess):
     memory = None
 
@@ -116,22 +105,6 @@ def get_register_context(self) -> str:
 
 
 def __lldb_init_module(debugger, dict):
-    # This is used when loading the script in an interactive debug session to
-    # automatically, register the stop-hook and launch the scripted process.
-    if not "SKIP_SCRIPTED_PROCESS_LAUNCH" in os.environ:
-        debugger.HandleCommand(
-            "target stop-hook add -k first -v 1 -k second -v 2 -P %s.%s"
-            % (__name__, DummyStopHook.__name__)
-        )
-        debugger.HandleCommand(
-            "process launch -C %s.%s" % (__name__, DummyScriptedProcess.__name__)
-        )
-    else:
-        print(
-            "Name of the class that will manage the scripted process: '%s.%s'"
-            % (__name__, DummyScriptedProcess.__name__)
-        )
-        print(
-            "Name of the class that will manage the stop-hook: '%s.%s'"
-            % (__name__, DummyStopHook.__name__)
-        )
+    debugger.HandleCommand(
+        "process launch -C %s.%s" % (__name__, DummyScriptedProcess.__name__)
+    )