Bug 48617 Error range for unresolved names in qualified references
20031211 1. in the following code public void foo() { int i= xxx.yyy; } 2. if 'xxx' is undefined, but the compiler marks 'xxx.yyy' as unresolved. It would be better to only mark 'xxx'
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/correction/UnresolvedElementsSubProcessor.java
if (!declaringType.isFromSource()) {
			return;
		}
		ICompilationUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, declaringType);
		if (targetCU != null) {
			boolean isDifferentCU= !cu.equals(targetCU);
			
			if (isDifferentCU && isImplicitConstructor(methodBinding, targetCU)) {
				return;
			}
			
			ChangeDescription[] changeDesc= new ChangeDescription[argTypes.length];
			ITypeBinding[] changeTypes= new ITypeBinding[diff];
			for (int i= diff - 1; i >= 0; i--) {
				int idx= indexSkipped[i];
				Expression arg= (Expression) arguments.get(idx);
				String name= arg instanceof SimpleName ? ((SimpleName) arg).getIdentifier() : null;
				ITypeBinding newType= Bindings.normalizeTypeBinding(argTypes[idx]);
				if (newType == null) {
					newType= astRoot.getAST().resolveWellKnownType("java.lang.Object"); 
				}
				changeDesc[idx]= new InsertDescription(newType, name);
				changeTypes[i]= newType;
			}
			String[] arg= new String[] { getMethodSignature(methodBinding, isDifferentCU), getTypeNames(changeTypes) };
			String label;
			if (methodBinding.isConstructor()) {
				if (diff == 1) {