91bd478a7f
Implement switch/case/default/break across the JS pipeline: - Tokens: Switch, Case, Default, Break variants with keyword mapping - AST: SwitchStmtData, SwitchCase structs and BreakStmt variant - Parser: parse_switch/parse_break with break_depth validation, multiple default clause rejection per ECMA-262 §14.12 - Interpreter: StmtResult::Break with fall-through semantics, strict equality matching, var hoisting through cases, and break propagation through blocks/if/try-finally Promotes js262-switch-basic from known_fail to pass (95/110). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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4 B
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