fix: change exception to soft warning for getType in RegisterArg

jadx-core/src/main/java/jadx/core/dex/instructions/args/RegisterArg.java

@@ -57,7 +57,8 @@ public class RegisterArg extends InsnArg implements Named {
 		if (sVar != null) {
 			return sVar.getTypeInfo().getType();
 		}
-		throw new JadxRuntimeException("Register type unknown, SSA variable not initialized: r" + regNum);
+		LOG.warn("Register type unknown, SSA variable not initialized: r{}", regNum);
+		return type;
 	}
 
 	public ArgType getInitType() {