gdb/dap: allow some requests when the process is running

It is impossible to set a breakpoint when the process is running,
which I find annoying. LLDB does not have this restriction. I made
`setBreakpoints` and `breakpointLocations` work when the process is
running. Probably more requests can be changed, but I only need these
two at the moment.

Approved-By: Tom Tromey <tom@tromey.com>

gdb/python/lib/gdb/dap/breakpoint.py

@@ -288,7 +288,7 @@ def _rewrite_src_breakpoint(
     }
 
 
-@request("setBreakpoints")
+@request("setBreakpoints", expect_stopped=False)
 @capability("supportsHitConditionalBreakpoints")
 @capability("supportsConditionalBreakpoints")
 @capability("supportsLogPoints")

gdb/python/lib/gdb/dap/locations.py

@@ -28,7 +28,7 @@ from .startup import exec_mi_and_log
 # This points out that fixing this would be an incompatibility but
 # goes on to propose "if arguments property is missing, debug adapters
 # should return an error".
-@request("breakpointLocations")
+@request("breakpointLocations", expect_stopped=False)
 @capability("supportsBreakpointLocationsRequest")
 def breakpoint_locations(*, source, line: int, endLine: Optional[int] = None, **extra):
     if endLine is None: