test: update postmortem metadata test

This commit updates the following postmortem metadata constant: - v8dbg_context_idx_closure - Renamed: v8dbg_context_idx_scope_info - V8 commit: v8/v8@39496a9#diff-f3f182b0510ba2ee39ae87e421ff110bFixes: nodejs/node-v8#59 Backport-PR-URL: #21668 PR-URL: #21079 Reviewed-By: James M Snell <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Yang Guo <[email protected]>

Author: cjihrig

test/v8-updates/test-postmortem-metadata.js

@@ -105,7 +105,7 @@ function getExpectedSymbols(){
 'v8dbg_class_SlicedString__parent__String',
 'v8dbg_class_String__length__SMI',
 'v8dbg_class_ThinString__actual__String',
-'v8dbg_context_idx_closure',
+'v8dbg_context_idx_scope_info',
 'v8dbg_context_idx_prev',
 'v8dbg_context_min_slots',
 'v8dbg_frametype_ArgumentsAdaptorFrame',