Type checking for Yul.

libyul/Dialect.cpp

@@ -19,10 +19,19 @@
  */
 
 #include <libyul/Dialect.h>
+#include <libyul/AsmData.h>
 
 using namespace solidity::yul;
 using namespace std;
 
+bool Dialect::validTypeForLiteral(LiteralKind _kind, YulString, YulString _type) const
+{
+	if (_kind == LiteralKind::Boolean)
+		return _type == boolType;
+	else
+		return true;
+}
+
 Dialect const& Dialect::yulDeprecated()
 {
 	static unique_ptr<Dialect> dialect;