Bug 167450 [DataBinding] Get rid of bind support factory magic
I finally realized that we don't need that other magic factory. I'll move fillBindSpecDefaults() and the methods it calls (createConverter, createValidator etc) to a new class DefaultBindSpec. Clients who want default validators and converters created for them just create a DefaultBindSpec as opposed to a (rather empty) BindSpec. I will also move the early type checking into DefaultBindSpec to make it optional as well.
bundles/org.eclipse.core.databinding/src/org/eclipse/core/databinding/DefaultBindSupportFactory.java
public IStatus validate(Object value) {
					return Status.OK_STATUS;
				}
			};
		}
		/**
		 * Adds the system-provided validators to the current validator
		 * registry. This is done automatically for the validator registry
		 * singleton.
		 */
		private ValidatorRegistry() {
			
			associate(String.class, Integer.TYPE,
					new String2IntegerPrimitiveValidator());
			associate(String.class, Byte.TYPE,
					new String2BytePrimitiveValidator());
			associate(String.class, Short.TYPE,
					new String2ShortPrimitiveValidator());
			associate(String.class, Long.TYPE,
					new String2LongPrimitiveValidator());
			associate(String.class, Float.TYPE,
					new String2FloatPrimitiveValidator());
			associate(String.class, Double.TYPE,
					new String2DoublePrimitiveValidator());
			associate(String.class, Integer.class,
					new String2IntegerValidator());
			associate(String.class, Byte.class, new String2ByteValidator());
			associate(String.class, Short.class, new String2ShortValidator());
			associate(String.class, Long.class, new String2LongValidator());
			associate(String.class, Float.class, new String2FloatValidator());