Bug 158947 the error of the datetime type conversion
Description: Now we input "Jan 13, 2003 12:00 AM GMT0100" into the parameter as a default value. The time is not transformed base on the time zone "GMT0100". The time should be transformed. And the other form input e.g. "SUN Jan 13, 2003 12:00 AM GMT0100" should be identified correctly. Step to reproduce: 1. new a report and create a report parameter 2. choose the date type "DateTime" 3. input value "SUN Jan 13, 2003 12:00 AM GMT0100" as default value,ok to finish 4. error message appear 5. input value "SUN Jan 13, 2003 12:00 AM" and click ok Actuate result: the parameter value is still "01/13/2003 12:00:00 AM" Excepted result: the datetime value should be transformed base on the time zone.
core/org.eclipse.birt.core/src/org/eclipse/birt/core/data/DataTypeUtil.java
{
		if ( source == null )
			return null;
		source = JavascriptEvalUtil.convertJavascriptValue( source );
		
		
		if ( toType == DataType.UNKNOWN_TYPE || toType == DataType.ANY_TYPE )
			return source;
		switch ( toType )
		{
			case DataType.INTEGER_TYPE :
				return toInteger( source );
			case DataType.DECIMAL_TYPE :
				return toBigDecimal( source );
			case DataType.BOOLEAN_TYPE :
				return toBoolean( source );
			case DataType.DATE_TYPE :
				return toDate( source );
			case DataType.DOUBLE_TYPE :
				return toDouble( source );
			case DataType.STRING_TYPE :
				return toString( source );
			case DataType.BLOB_TYPE :
				return toBlob( source );
			case DataType.BINARY_TYPE :
				return toBytes( source );
			default :
				throw new BirtException( pluginId,
						ResourceConstants.INVALID_TYPE,
						resourceBundle );