fix(code-mode): generalize failures and bound diagnostics

scripts/type-equiv.manifest.json

@@ -849,6 +849,11 @@
       "symbol": "CodeBindingNamespace",
       "source": "packages/code-runtime/code-runtime/src/types.ts"
     },
+    {
+      "doc": "docs/core-data-structures/code-runtime.md",
+      "symbol": "CodeBindingErrorClass",
+      "source": "packages/code-runtime/code-runtime/src/types.ts"
+    },
     {
       "doc": "docs/core-data-structures/code-runtime.md",
       "symbol": "CodeBindingFunction",