compiler: Use correct package path for global

tgo.go

@@ -732,9 +732,10 @@ func (c *Compiler) parseExpr(frame *Frame, expr ssa.Value) (llvm.Value, error) {
 		if strings.HasPrefix(expr.Name(), "__cgofn__cgo_") || strings.HasPrefix(expr.Name(), "_cgo_") {
 			return llvm.Value{}, ErrCGoIgnore
 		}
-		value := c.mod.NamedGlobal(expr.Pkg.Pkg.Path() + "." + expr.Name())
+		fullName := pkgPrefix(expr.Pkg) + "." + expr.Name()
+		value := c.mod.NamedGlobal(fullName)
 		if value.IsNil() {
-			return llvm.Value{}, errors.New("global not found: " + expr.Name())
+			return llvm.Value{}, errors.New("global not found: " + fullName)
 		}
 		return value, nil
 	case *ssa.IndexAddr: