Add optimizer setting for fuzzing.

libsolidity/codegen/CompilerContext.cpp

@@ -521,6 +521,7 @@ void CompilerContext::appendInlineAssembly(
 		analysisInfo,
 		*m_asm,
 		m_evmVersion,
+		_optimiserSettings.forceOldPipeline,
 		identifierAccess.generateCode,
 		_system,
 		_optimiserSettings.optimizeStackAllocation
@@ -551,6 +552,7 @@ void CompilerContext::optimizeYul(
 		&meter,
 		_object,
 		_optimiserSettings.optimizeStackAllocation,
+		_optimiserSettings.forceOldPipeline,
 		_optimiserSettings.yulOptimiserSteps,
 		isCreation? nullopt : make_optional(_optimiserSettings.expectedExecutionsPerDeployment),
 		_externalIdentifiers,

libsolidity/codegen/ContractCompiler.cpp

@@ -915,6 +915,7 @@ bool ContractCompiler::visit(InlineAssembly const& _inlineAssembly)
 		*analysisInfo,
 		*m_context.assemblyPtr(),
 		m_context.evmVersion(),
+		m_optimiserSettings.forceOldPipeline,
 		identifierAccessCodeGen,
 		false,
 		m_optimiserSettings.optimizeStackAllocation

libsolidity/interface/OptimiserSettings.h

@@ -149,6 +149,7 @@ struct OptimiserSettings
 	/// This specifies an estimate on how often each opcode in this assembly will be executed,
 	/// i.e. use a small value to optimise for size and a large value to optimise for runtime gas usage.
 	size_t expectedExecutionsPerDeployment = 200;
+	bool forceOldPipeline = false;
 };
 
 }