Fix breakpoint event

Few problems:
 - we were passing a dict instead of a list of breakpoints
 - if the breakpoint had a source which was {} we crashed
 - we didn't support the 'removed' event

tests/testdata/cpp/simple/.vimspector.json

@@ -68,6 +68,45 @@
           "CALCULATED_STR", "${CALCULATED_STR}"
         ]
       }
+    },
+    "lldb-vscode": {
+      "adapter": "lldb-vscode",
+      "configuration": {
+        "request": "launch",
+        "program": "${workspaceRoot}/${fileBasenameNoExtension}",
+        "cwd": "${workspaceRoot}",
+        "externalConsole": false,
+        "MIMode": "lldb"
+      }
+    },
+    "CodeLLDB": {
+      "adapter": "CodeLLDB",
+      "configuration": {
+        "request": "launch",
+        "program": "${workspaceRoot}/${fileBasenameNoExtension}",
+        "cwd": "${workspaceRoot}",
+        "expressions": "native"
+      }
+    }
+  },
+  "adapters": {
+    "lldb-vscode": {
+      "variables": {
+        "LLVM": {
+          "shell": "brew --prefix llvm"
+        }
+      },
+      "attach": {
+        "pidProperty": "pid",
+        "pidSelect": "ask"
+      },
+      "command": [
+        "${LLVM}/bin/lldb-vscode"
+      ],
+      "env": {
+        "LLDB_LAUNCH_FLAG_LAUNCH_IN_TTY": "YES"
+      },
+      "name": "lldb"
     }
   }
 }