debugger: Improve Go support (#31559)

Supersedes https://github.com/zed-industries/zed/pull/31345 
This PR does not have any terminal/console related stuff so that it can
be solved separately.

Introduces inline hints in debugger:
<img width="1141" alt="image"
src="https://github.com/user-attachments/assets/b0575f1e-ddf8-41fe-8958-2da6d4974912"
/>
Adds locators for go, so that you can your app in debug mode:
<img width="706" alt="image"
src="https://github.com/user-attachments/assets/df29bba5-8264-4bea-976f-686c32a5605b"
/>
As well is allows you to specify an existing compiled binary:
<img width="604" alt="image"
src="https://github.com/user-attachments/assets/548f2ab5-88c1-41fb-af84-115a19e685ea"
/>

Release Notes:

- Added inline value hints for Go debugging, displaying variable values
directly in the editor during debug sessions
- Added Go debug locator support, enabling debugging of Go applications
through task templates
- Improved Go debug adapter to support both source debugging (mode:
"debug") and binary execution (mode: "exec") based on program path

cc @osiewicz, @Anthony-Eid

crates/dap_adapters/src/dap_adapters.rs

@@ -18,7 +18,7 @@ use dap::{
         GithubRepo,
     },
     configure_tcp_connection,
-    inline_value::{PythonInlineValueProvider, RustInlineValueProvider},
+    inline_value::{GoInlineValueProvider, PythonInlineValueProvider, RustInlineValueProvider},
 };
 use gdb::GdbDebugAdapter;
 use go::GoDebugAdapter;
@@ -48,5 +48,6 @@ pub fn init(cx: &mut App) {
         registry.add_inline_value_provider("Rust".to_string(), Arc::from(RustInlineValueProvider));
         registry
             .add_inline_value_provider("Python".to_string(), Arc::from(PythonInlineValueProvider));
+        registry.add_inline_value_provider("Go".to_string(), Arc::from(GoInlineValueProvider));
     })
 }

crates/dap_adapters/src/go.rs

@@ -312,14 +312,22 @@ impl DebugAdapter for GoDebugAdapter {
                     "processId": attach_config.process_id,
                 })
             }
-            dap::DebugRequest::Launch(launch_config) => json!({
-                "request": "launch",
-                "mode": "debug",
-                "program": launch_config.program,
-                "cwd": launch_config.cwd,
-                "args": launch_config.args,
-                "env": launch_config.env_json()
-            }),
+            dap::DebugRequest::Launch(launch_config) => {
+                let mode = if launch_config.program != "." {
+                    "exec"
+                } else {
+                    "debug"
+                };
+
+                json!({
+                    "request": "launch",
+                    "mode": mode,
+                    "program": launch_config.program,
+                    "cwd": launch_config.cwd,
+                    "args": launch_config.args,
+                    "env": launch_config.env_json()
+                })
+            }
         };
 
         let map = args.as_object_mut().unwrap();