Remove scanner from compiler stack.

test/libyul/Common.cpp

@@ -74,7 +74,8 @@ pair<shared_ptr<Object>, shared_ptr<yul::AsmAnalysisInfo>> yul::test::parse(
 )
 {
 	ErrorReporter errorReporter(_errors);
-	shared_ptr<Scanner> scanner = make_shared<Scanner>(CharStream(_source, ""));
+	CharStream stream(_source, "");
+	shared_ptr<Scanner> scanner = make_shared<Scanner>(stream);
 	shared_ptr<Object> parserResult = yul::ObjectParser(errorReporter, _dialect).parse(scanner, false);
 	if (!parserResult)
 		return {};

test/libyul/ObjectParser.cpp

@@ -23,6 +23,8 @@
 
 #include <test/libsolidity/ErrorCheck.h>
 
+#include <liblangutil/Scanner.h>
+
 #include <libyul/AssemblyStack.h>
 #include <libyul/backends/evm/EVMDialect.h>
 
@@ -118,7 +120,8 @@ tuple<optional<ObjectParser::SourceNameMap>, ErrorList> tryGetSourceLocationMapp
 	ErrorReporter reporter(errors);
 	Dialect const& dialect = yul::EVMDialect::strictAssemblyForEVM(EVMVersion::berlin());
 	ObjectParser objectParser{reporter, dialect};
-	objectParser.parse(make_shared<Scanner>(CharStream(move(source), "")), false);
+	CharStream stream(move(source), "");
+	objectParser.parse(make_shared<Scanner>(stream), false);
 	return {objectParser.sourceNameMapping(), std::move(errors)};
 }
 

test/libyul/Parser.cpp

@@ -55,7 +55,8 @@ shared_ptr<Block> parse(string const& _source, Dialect const& _dialect, ErrorRep
 {
 	try
 	{
-		auto scanner = make_shared<Scanner>(CharStream(_source, ""));
+		auto stream = CharStream(_source, "");
+		auto scanner = make_shared<Scanner>(stream);
 		map<unsigned, shared_ptr<string const>> indicesToSourceNames;
 		indicesToSourceNames[0] = make_shared<string const>("source0");
 		indicesToSourceNames[1] = make_shared<string const>("source1");