Fix bound functions with calldata parameters.

docs/bugs.json

@@ -1,4 +1,12 @@
 [
+    {
+        "name": "UsingForCalldata",
+        "summary": "Function calls to internal library functions with calldata parameters called via ``using for`` can result in invalid data being read.",
+        "description": "Function calls to internal library functions using the ``using for`` mechanism copied all calldata parameters to memory first and passed them on like that, regardless of whether it was an internal or an external call. Due to that, the called function would receive a memory pointer that is interpreted as a calldata pointer.",
+        "introduced": "0.6.9",
+        "fixed": "0.6.10",
+        "severity": "very low"
+    },
     {
         "name": "MissingEscapingInFormatting",
         "summary": "String literals containing double backslash characters passed directly to external or encoding function calls can lead to a different string being used when ABIEncoderV2 is enabled.",

docs/bugs_by_version.json

@@ -1165,7 +1165,9 @@
         "released": "2020-05-14"
     },
     "0.6.9": {
-        "bugs": [],
+        "bugs": [
+            "UsingForCalldata"
+        ],
         "released": "2020-06-04"
     }
 }