Don't skip mapping of glyphs for CIDFontType2 fonts with a CIDToGIDMap

Also don't skip mapping of glyphs which are empty, if the corresponding charCode is included in toUnicode.

test/pdfs/.gitignore

@@ -18,6 +18,7 @@
 !sizes.pdf
 !close-path-bug.pdf
 !issue4630.pdf
+!issue5202.pdf
 !issue5280.pdf
 !alphatrans.pdf
 !devicen.pdf
@@ -62,6 +63,7 @@
 !issue1002.pdf
 !issue925.pdf
 !issue2840.pdf
+!issue4061.pdf
 !issue4668.pdf
 !issue5039.pdf
 !issue5070.pdf

test/test_manifest.json

@@ -485,6 +485,20 @@
        "lastPage": 1,
        "type": "eq"
     },
+    {  "id": "issue4061",
+       "file": "pdfs/issue4061.pdf",
+       "md5": "236aaa8840a47c3c061f8e3034549764",
+       "rounds": 1,
+       "link": false,
+       "type": "eq"
+    },
+    {  "id": "issue5202",
+       "file": "pdfs/issue5202.pdf",
+       "md5": "bb9cc69211112e66aab40828086a4e5a",
+       "rounds": 1,
+       "link": false,
+       "type": "eq"
+    },
     {  "id": "issue5238",
        "file": "pdfs/issue5238.pdf",
        "md5": "6ddecda00893be1793de20a70c83a3c2",