Clean up compiler implementation of switch expressions #2442
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What it does
We don't need to track if a method declaration or a lambda contains an exception handling switch anymore since we simulate operand stack at all times
Fixes Enhance operand stack inconsistency/anomaly checks #2450
Fixes [Switch expressions] java.lang.VerifyError: Bad type on operand stack #2476
Fixes Should tableswitch and lookupswitch set org.eclipse.jdt.internal.compiler.codegen.CodeStream.lastAbruptCompletion ?? #2492
Fixes [Switch expression] Compiler erroneously treats guarded case patterns as covering switch selector type #2508
Fixes [Enhanced switch] Compiler fails to complain about non-exhaustive switch #1777
Author checklist