weird nqp error

gistfile1.txt

diff --git a/src/vm/moar/QAST/QASTCompilerMAST.nqp b/src/vm/moar/QAST/QASTCompilerMAST.nqp
index b05ea54..a3b661f 100644
--- a/src/vm/moar/QAST/QASTCompilerMAST.nqp
+++ b/src/vm/moar/QAST/QASTCompilerMAST.nqp
@@ -1402,9 +1402,17 @@ my class MASTCompilerInstance {
             # Annotate with line number if we have one.
             my $node := $_.node;
             if nqp::isconcrete($node) && nqp::can($node,'orig') {
-                my $line := HLL::Compiler.lineof($node.orig(), $node.from(), :cache(1));
+                my str $target := ~Snode.orig();
+                my int $pos := $node.from();
+                my $file := $!file;
+                my $sf_index_s := nqp::rindex($target, '#line 1 ', $pos);
+                if $sf_index_s >= 0 {
+                    $file := nqp::substr($target, $sf_index_s, nqp::index($target, "\n", $sf_index_s) - $sf_index_s);
+                    nqp::printfh(nqp::getstderr(), "file: $file\n");
+                }
+                my $line := HLL::Compiler.lineof($target, $pos, :cache(1));
                 nqp::push(@all_ins, MAST::Annotated.new(
-                    :$!file, :$line, :instructions($last_stmt.instructions) ));
+                    :$file, :$line, :instructions($last_stmt.instructions) ));
             }
             else {
                 nqp::splice(@all_ins, $last_stmt.instructions, +@all_ins, 0);