public boolean isSynthetic() {
		return (access_flags & ACC_SYNTHETIC_INDEX) != 0;
	}
Returns a {@code boolean} representing whether or not the parameter is synthetic, i.e.,
a compiler artifact rather than being explicitly or implicitly declared in the source.
@return true if synthetic
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/MethodParameters.java