Add range-based error messages to `-verbose-errors`

Example:
Cannot convert '(1 + 2)' to 'untyped bool' from 'untyped integer'

	x := (1 + 2) * true;
	     ^~~~~~^

1 files changed, 9 insertions, 8 deletions

diff --git a/src/check_expr.cpp b/src/check_expr.cpp
index 68f05084e..81fe3baa9 100644
--- a/src/check_expr.cpp
+++ b/src/check_expr.cpp
@@ -5516,7 +5516,7 @@ ExprKind check_call_expr(CheckerContext *c, Operand *operand, Ast *call, Ast *pr
 	if (proc != nullptr &&
 	    proc->kind == Ast_BasicDirective) {
 		ast_node(bd, BasicDirective, proc);
-		String name = bd->name;
+		String name = bd->name.string;
 		if (name == "location" || name == "assert" || name == "panic" || name == "defined" || name == "config" || name == "load") {
 			operand->mode = Addressing_Builtin;
 			operand->builtin_id = BuiltinProc_DIRECTIVE;
@@ -6191,13 +6191,14 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
 
 	case_ast_node(bd, BasicDirective, node);
 		o->mode = Addressing_Constant;
-		if (bd->name == "file") {
+		String name = bd->name.string;
+		if (name == "file") {
 			o->type = t_untyped_string;
 			o->value = exact_value_string(get_file_path_string(bd->token.pos.file_id));
-		} else if (bd->name == "line") {
+		} else if (name == "line") {
 			o->type = t_untyped_integer;
 			o->value = exact_value_i64(bd->token.pos.line);
-		} else if (bd->name == "procedure") {
+		} else if (name == "procedure") {
 			if (c->curr_proc_decl == nullptr) {
 				error(node, "#procedure may only be used within procedures");
 				o->type = t_untyped_string;
@@ -6206,7 +6207,7 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
 				o->type = t_untyped_string;
 				o->value = exact_value_string(c->proc_name);
 			}
-		} else if (bd->name == "caller_location") {
+		} else if (name == "caller_location") {
 			init_core_source_code_location(c->checker);
 			error(node, "#caller_location may only be used as a default argument parameter");
 			o->type = t_source_code_location;
@@ -6373,7 +6374,7 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
 					if (cl->type->ArrayType.tag != nullptr) {
 						Ast *tag = cl->type->ArrayType.tag;
 						GB_ASSERT(tag->kind == Ast_BasicDirective);
-						String name = tag->BasicDirective.name;
+						String name = tag->BasicDirective.name.string;
 						if (name == "soa") {
 							error(node, "#soa arrays are not supported for compound literals");
 							return kind;
@@ -6385,7 +6386,7 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
 				if (cl->elems.count > 0) {
 					Ast *tag = cl->type->DynamicArrayType.tag;
 					GB_ASSERT(tag->kind == Ast_BasicDirective);
-					String name = tag->BasicDirective.name;
+					String name = tag->BasicDirective.name.string;
 					if (name == "soa") {
 						error(node, "#soa arrays are not supported for compound literals");
 						return kind;
@@ -8151,7 +8152,7 @@ gbString write_expr_to_string(gbString str, Ast *node, bool shorthand) {
 
 	case_ast_node(bd, BasicDirective, node);
 		str = gb_string_append_rune(str, '#');
-		str = string_append_string(str, bd->name);
+		str = string_append_string(str, bd->name.string);
 	case_end;
 
 	case_ast_node(ud, Undef, node);