[Flint] adding minimalist IR builder, adding pseudo instructions,

improving edge validations

src/intel/compiler/ir/ir.zig

@@ -1,8 +1,10 @@
+pub const Builder = @import("Builder.zig");
 pub const id = @import("id.zig");
 pub const instruction = @import("instruction.zig");
 pub const operand = @import("operand.zig");
 pub const printer = @import("printer.zig");
 pub const program = @import("program.zig");
+pub const pseudo = @import("pseudo.zig");
 pub const validator = @import("validator.zig");
 
 pub const Program = program.Program;