Add rule to prevent setting context from outside the ContextManager class

Author: EhabY

.eslintrc.json

@@ -23,6 +23,12 @@
 		"import/internal-regex": "^@/"
 	},
 	"overrides": [
+		{
+			"files": ["src/core/contextManager.ts"],
+			"rules": {
+				"no-restricted-syntax": "off"
+			}
+		},
 		{
 			"files": ["test/**/*.{ts,tsx}", "**/*.{test,spec}.ts?(x)"],
 			"settings": {
@@ -110,6 +116,13 @@
 					"sublings_only": true
 				}
 			}
+		],
+		"no-restricted-syntax": [
+			"error",
+			{
+				"selector": "CallExpression[callee.property.name='executeCommand'][arguments.0.value='setContext'][arguments.length>=3]",
+				"message": "Do not use executeCommand('setContext', ...) directly. Use the ContextManager class instead."
+			}
 		]
 	}
 }