public int getMethodIndex() {
		return methodIndex & 0xffff;
	}
If the current class is not immediately enclosed by a method or constructor,
then the value of the method_index item must be zero.
<p>
Otherwise, the value of the method_index item must be a valid index into
the constant_pool table. The constant_pool entry at that index must be a
CONSTANT_NameAndType_info structure representing the name and
type of a method in the class referenced by the class_index attribute above.
@return a valid index into the constant_pool table, or zero
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/attributes/EnclosingMethodAttribute.java