remove region/endregion directives, using editor extensions for comment signatures instead.

src/check_builtin.cpp

@@ -2096,19 +2096,6 @@ gb_internal bool check_builtin_procedure_directive(CheckerContext *c, Operand *o
 		array_add(&c->info->defineables, defineable);
 
 	} 
-	
-	// Bodging in #region & #endregion support
-	else if (name == "region") {
-		operand->type = t_untyped_bool;
-		operand->mode = Addressing_Constant;
-		operand->value = exact_value_bool(true);
-	}
-	else if (name == "endregion") {
-		operand->type = t_untyped_bool;
-		operand->mode = Addressing_Constant;
-		operand->value = exact_value_bool(true);
-	}
-	
 	else {
 		error(call, "Unknown directive call: #%.*s", LIT(name));
 	}

src/check_expr.cpp

@@ -7872,8 +7872,6 @@ gb_internal ExprKind check_call_expr(CheckerContext *c, Operand *operand, Ast *c
 		    name == "exists" ||
 		    name == "assert" || 
 		    name == "panic" || 
-			name == "region" ||
-			name == "endregion" ||
 		    name == "defined" || 
 		    name == "config" || 
 		    name == "load" ||

src/parser.cpp

@@ -5364,7 +5364,7 @@ gb_internal Ast *parse_stmt(AstFile *f) {
 				break;
 			}
 			return s;
-		} else if (tag == "assert" || tag == "panic" || tag == "region" || tag == "endregion") {
+		} else if (tag == "assert" || tag == "panic") {
 			Ast *t = ast_basic_directive(f, hash_token, name);
 			Ast *stmt = ast_expr_stmt(f, parse_call_expr(f, t));
 			expect_semicolon(f);