Rename variables list constant to better reflect use cases

Author: deve-sh

lib/runner/extensions/event.command.js

@@ -25,7 +25,7 @@ var _ = require('lodash'),
 
     EXECUTION_VAULT_BASE = 'execution.vault.',
 
-    CONTEXT_VARIABLE_SCOPES = ['_variables', 'environment', 'globals'],
+    SYNCABLE_CONTEXT_VARIABLE_SCOPES = ['_variables', 'environment', 'globals'],
 
     COOKIES_EVENT_STORE_ACTION = 'store',
     COOKIE_STORE_PUT_METHOD = 'putCookie',
@@ -623,7 +623,7 @@ module.exports = {
                                                 // All other global variables defined by syntax like 'a=1'
                                                 // are anyway synced as the sandbox's common scope is shared across runs
                                                 if (result) {
-                                                    CONTEXT_VARIABLE_SCOPES.forEach(function (type) {
+                                                    SYNCABLE_CONTEXT_VARIABLE_SCOPES.forEach(function (type) {
                                                         variableMutationsFromThisExecution[type] =
                                                             !variableMutationsFromThisExecution[type] ?
                                                                 [result[type].mutations] :