Follow alphabetical order in enums and in their corresponding match statements all over the compiler

[mohammadfawaz]

This may or may not make sense in some situations, but for the most part, it would be nice to have everything ordered alphabetically. This brings consistency and improves code readability.

e.g.

sway/sway-core/src/semantic_analysis/ast_node/declaration.rs

Lines 27 to 34 in a3b9cee

	pub enum TypedDeclaration {
	VariableDeclaration(TypedVariableDeclaration),
	ConstantDeclaration(TypedConstantDeclaration),
	FunctionDeclaration(TypedFunctionDeclaration),
	TraitDeclaration(TypedTraitDeclaration),
	StructDeclaration(TypedStructDeclaration),
	EnumDeclaration(TypedEnumDeclaration),
	Reassignment(TypedReassignment),

I think we already this properly in the sway-ir crate.