Disable questions on multiple matches for GDB

Due to an issue with vscode-cpptools, see:

microsoft/vscode-cpptools#11953

For eng/ide/ada_language_server#1590

Author: AnthonyLeonardoGracio

integration/vscode/ada/package.json

@@ -1033,11 +1033,18 @@
                             "stopAtEntry": false,
                             "externalConsole": false,
                             "preLaunchTask": "ada: Build current project",
-                            "setupCommands": {
-                                "description": "Enable pretty-printing for gdb",
-                                "text": "-enable-pretty-printing",
-                                "ignoreFailures": true
-                            }
+                            "setupCommands": [
+                                {
+                                    "description": "Enable pretty-printing for gdb",
+                                    "text": "-enable-pretty-printing",
+                                    "ignoreFailures": true
+                                },
+                                {
+                                    "description": "Disable questions on multiple matches",
+                                    "text": "set multiple-symbols cancel",
+                                    "ignoreFailures": false
+                                }
+                            ]
                         }
                     }
                 ],

integration/vscode/ada/src/debugConfigProvider.ts

@@ -295,14 +295,23 @@ export class AdaInitialDebugConfigProvider implements vscode.DebugConfigurationP
 }
 
 /**
- * GDB default setup options
+ * GDB default setup options.
+ * We enable pretty-printing by default and disable questions
+ * on multiple matches due to an issue with vscode-cpptools
+ * GDB integration
+ * (see https://github.com/microsoft/vscode-cpptools/issues/11953)
  */
 const setupCmd = [
     {
         description: 'Enable pretty-printing for gdb',
         text: '-enable-pretty-printing',
         ignoreFailures: true,
     },
+    {
+        description: 'Disable questions on multiple matches',
+        text: 'set multiple-symbols cancel',
+        ignoreFailures: false,
+    },
 ];
 
 interface QuickPickAdaMain extends vscode.QuickPickItem {