public static Structure findExistingClassStruct(GhidraClass classNamespace,
			DataTypeManager dataTypeManager) {
		return DataTypeUtilities.findExistingClassStruct(dataTypeManager, classNamespace);
	}
Find the structure data type which corresponds to the specified class namespace
within the specified data type manager.

The preferred structure will utilize a namespace-based category path, however,
the match criteria can be fuzzy and relies primarily on the class name.
A properly named class structure must reside within a category whose trailing 
path either matches the class namespace or the class-parent's namespace.  
Preference is given to it residing within the class-parent's namespace.

@param classNamespace class namespace
@param dataTypeManager data type manager which should be searched.
@return existing structure whose name matches the specified class namespace
or null if not found.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/listing/VariableUtilities.java