[webkit-changes] [WebKit/WebKit] 4d3dfe: Unreviewed, reverting 312444@main.

[Commit Queue]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 4d3dfedf0440bad3a57ce101327f9c867d322bd4
      
https://github.com/WebKit/WebKit/commit/4d3dfedf0440bad3a57ce101327f9c867d322bd4
  Author: Commit Queue <commit-qu...@webkit.org>
  Date:   2026-05-06 (Wed, 06 May 2026)

  Changed paths:
    R JSTests/stress/eager-iife-column-tracking.js
    M Source/JavaScriptCore/JavaScriptCore.xcodeproj/project.pbxproj
    M Source/JavaScriptCore/Sources.txt
    M Source/JavaScriptCore/parser/ASTBuilder.h
    R Source/JavaScriptCore/parser/EagerIIFERegistry.cpp
    R Source/JavaScriptCore/parser/EagerIIFERegistry.h
    M Source/JavaScriptCore/parser/NodeConstructors.h
    M Source/JavaScriptCore/parser/Nodes.cpp
    M Source/JavaScriptCore/parser/Nodes.h
    M Source/JavaScriptCore/parser/Parser.cpp
    M Source/JavaScriptCore/parser/Parser.h
    M Source/JavaScriptCore/parser/ParserArena.h
    M Source/JavaScriptCore/runtime/OptionsList.h
    M Source/JavaScriptCore/runtime/VM.cpp
    M Source/JavaScriptCore/runtime/VM.h

  Log Message:
  -----------
  Unreviewed, reverting 312444@main.
https://bugs.webkit.org/show_bug.cgi?id=314209

speculative cause-by for regression on <http://instagram.com|instagram.com>

Reverted changeset:

"[JSC] Eagerly build AST for likely IIFEs"

https://bugs.webkit.org/show_bug.cgi?id=311459
https://commits.webkit.org/312444@main
Canonical link: https://commits.webkit.org/312704@main



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