Bug 82260 ResultCollector: remove dependency to internal J Core interface
I20050104-1600 Summary says it all.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/ResultCollector.java
ProposalContextInformation contextInformation= null;
		if (hasOpeningBracket && parameterTypeNames.length > 0) {
			contextInformation= new ProposalContextInformation();
			contextInformation.setInformationDisplayString(getParameterSignature(parameterTypeNames, parameterNames));		
			contextInformation.setContextDisplayString(proposal.getDisplayString());
			contextInformation.setImage(proposal.getImage());
			int position= (completionName.length == 0) ? fContextOffset : -1;
			contextInformation.setContextInformationPosition(position);
			proposal.setContextInformation(contextInformation);
		}
	
		boolean userMustCompleteParameters= (contextInformation != null && completionName.length > 0);
		char[] triggers= userMustCompleteParameters ? METHOD_WITH_ARGUMENTS_TRIGGERS : METHOD_TRIGGERS;
		proposal.setTriggerCharacters(triggers);
		
		if (userMustCompleteParameters) {
			
			proposal.setCursorPosition(completionName.length - 1);
		}
		
		fMethods.add(proposal);	
	}
	
	protected void internalAcceptMethod(CompletionProposal method) {
		char[] declaringTypePackageName= Signature.getSignatureQualifier(method.getDeclarationSignature());
		char[] declaringTypeName= Signature.getSignatureSimpleName(method.getDeclarationSignature());
		char[] name= method.getName();
		char[] signature= SignatureUtil.unboundedSignature(method.getSignature());
		char[][] parameterPackageNames= getParameterPackages(signature);
		char[][] parameterTypeNames= getParameterTypes(signature);