Add test and docs for top level mypy: disable-error-code comment (#14810)

Closes #14750

Author: sobolevn

docs/source/common_issues.rst

@@ -186,7 +186,7 @@ Ignoring a whole file
 
 * To only ignore errors, use a top-level ``# mypy: ignore-errors`` comment instead.
 * To only ignore errors with a specific error code, use a top-level
-  ``# mypy: disable-error-code=...`` comment.
+  ``# mypy: disable-error-code="..."`` comment. Example: ``# mypy: disable-error-code="truthy-bool, ignore-without-code"``
 * To replace the contents of a module with ``Any``, use a per-module ``follow_imports = skip``.
   See :ref:`Following imports <follow-imports>` for details.
 

mypy/fastparse.py

@@ -487,11 +487,13 @@ def translate_stmt_list(
             and self.type_ignores
             and min(self.type_ignores) < self.get_lineno(stmts[0])
         ):
-            if self.type_ignores[min(self.type_ignores)]:
+            ignores = self.type_ignores[min(self.type_ignores)]
+            if ignores:
+                joined_ignores = ", ".join(ignores)
                 self.fail(
                     (
                         "type ignore with error code is not supported for modules; "
-                        "use `# mypy: disable-error-code=...`"
+                        f'use `# mypy: disable-error-code="{joined_ignores}"`'
                     ),
                     line=min(self.type_ignores),
                     column=0,

test-data/unit/check-errorcodes.test

@@ -960,7 +960,11 @@ def f(d: D, s: str) -> None:
 [typing fixtures/typing-typeddict.pyi]
 
 [case testRecommendErrorCode]
-# type: ignore[whatever]  # E: type ignore with error code is not supported for modules; use `# mypy: disable-error-code=...`  [syntax]
+# type: ignore[whatever]  # E: type ignore with error code is not supported for modules; use `# mypy: disable-error-code="whatever"`  [syntax]
+1 + "asdf"
+
+[case testRecommendErrorCode2]
+# type: ignore[whatever, other]  # E: type ignore with error code is not supported for modules; use `# mypy: disable-error-code="whatever, other"`  [syntax]
 1 + "asdf"
 
 [case testShowErrorCodesInConfig]

test-data/unit/check-inline-config.test

@@ -210,3 +210,12 @@ enable_error_code = ignore-without-code, truthy-bool
 
 \[mypy-tests.*]
 disable_error_code = ignore-without-code
+
+[case testInlineErrorCodesMultipleCodes]
+# mypy: disable-error-code="truthy-bool, ignore-without-code"
+class Foo:
+    pass
+
+foo = Foo()
+if foo: ...
+42 + "no"  # type: ignore