ci: run wkhtmltopdf only on linux again

cmd/tools/modules/testing/common.v

@@ -143,7 +143,7 @@ pub fn new_test_session(_vargs string) TestSession {
 		skip_files << 'examples/sokol/06_obj_viewer/obj/util.v'
 	}
 	if testing.github_job != 'ubuntu-tcc' {
-		skip_files << 'examples/wkhtmltopdf.v' // needs installation of wkhtmltopdf from https://github.com/wkhtmltopdf/packaging/releases
+		skip_files << 'examples/c_interop_wkhtmltopdf.v' // needs installation of wkhtmltopdf from https://github.com/wkhtmltopdf/packaging/releases
 		// the ttf_test.v is not interactive, but needs X11 headers to be installed, which is done only on ubuntu-tcc for now
 		skip_files << 'vlib/x/ttf/ttf_test.v'
 	}

examples/c_interop_wkhtmltopdf.v

@@ -71,7 +71,7 @@ fn main() {
 	error_code := C.wkhtmltopdf_http_error_code(converter)
 	println('wkhtmltopdf_http_error_code: $error_code')
 	if result {
-		data := &&char(0)
+		data := &charptr(0)
 		size := C.wkhtmltopdf_get_output(converter, data)
 		println('wkhtmltopdf_get_output: $size bytes')
 		mut file := os.open_file('./google.pdf', 'w+', 0o666) or {

vlib/v/ast/ast.v

@@ -1067,7 +1067,7 @@ pub mut:
 	typname   string // TypeSymbol.name
 	expr_type Type   // `byteptr`
 	has_arg   bool
-	in_prexpr bool // is the parent node an PrefixExpr
+	in_prexpr bool // is the parent node a PrefixExpr
 }
 
 pub struct AsmStmt {

vlib/v/parser/pratt.v

@@ -489,6 +489,10 @@ fn (mut p Parser) infix_expr(left ast.Expr) ast.Expr {
 	}
 }
 
+fn (p &Parser) fileis(s string) bool {
+	return p.file_name.contains(s)
+}
+
 fn (mut p Parser) prefix_expr() ast.PrefixExpr {
 	mut pos := p.tok.position()
 	op := p.tok.kind