Support Bool, print debug filename

nimterop/getters.nim

@@ -103,7 +103,10 @@ const
     # floating point
     "float": "cfloat",
     "double": "cdouble",
-    "long double": "clongdouble"
+    "long double": "clongdouble",
+
+    # Misc Nim types
+    "Bool": "bool"
   }.toTable()
 
   # Nim type names that shouldn't need to be wrapped again

nimterop/toast.nim

@@ -114,6 +114,9 @@ proc main(
     doAssert gState.outputHandle.open(outputFile, fmWrite),
       &"Failed to write to {outputFile}"
 
+    if gState.debug:
+      echo &"# Writing output to {outputFile}\n"
+
   # Process grammar into AST
   let
     astTable =