Initial import of the Generic MCS tree.

Initial import of the Generic MCS tree.

2003-07-20  Miguel de Icaza  <miguel@ximian.com>

	* cs-parser.jay (namespace_name): do not use
	namespace_or_type_name, use qualified_identifier, because
	namespace_or_type_name will soon return a composed expression
	instead of a string.

	(namespace_or_type_name): Instead of returning a string, now this
	production returns an expression.

	* codegen.cs (EmitContext): Setup IsGeneric property based on
	whether our DeclSpace is generic, our the method is generic.

	* modifier.cs (Modifiers.METHOD_GENERIC): New definition, use if
	the method is generic.

	* cs-parser.jay (type_arguments, opt_type_argument_list,
	type_parameters, type_parameter_list, opt_type_parameter_list,
	type_parameter,, opt_type_parameter_constraints_clauses,
	type_parameter_constraints_clauses,
	type_parameter_constraint_clause, type_parameter_constraint,
	interface_constraints): Add new production

	* decl.cs (DeclSpace): IsGeneric, flag to track whether this
	DeclSpace is generic or not.

	(DeclSpace.SetParameterInfo): New routine, used to set the
	parameter info for a type.

	(DeclSpace.LookupGeneric): Lookups a name, and if it is a generic,
	returns a GenericTypeExpr

	* ecore.cs (SimpleName.ResolveAsTypeStep): If our container is
	generic, lookup the generic argument.

	* attribute.cs: Do not allow TypeParameterExpressions in
	Attributes.

	* class.cs: Do not allow the Main method to be defined in a
	Generic container.

	* expression.cs (SizeOf): Do not allow generic types to be used as
	arguments to sizeof.

	* typemanager.cs (IsGeneric): Wrapper for Reflection when we have
	it: whether a type is generic or not.  Only works for types we are
	currently building for now.

2003-01-21  Miguel de Icaza  <miguel@ximian.com>

	* generic.cs: New file, contains support code for generics.

	* cs-parser.jay: Remove OP_SHIFT_LEFT, OP_SHIFT_RIGHT,
	OP_SHIFT_LEFT_ASSIGN, OP_SHIFT_RIGHT_ASSIGN.

	Update parser for the above removals.

	* cs-tokenizer.cs: Do not handle <<= or >>= specially.  This is
	now taken care of in the parser.

svn path=/trunk/mcs/; revision=16612