Revert "Fixed the 'syntax error in type comment -> Syntax error in ty…

…pe comment' for test cases and the error print in mypy/message_registry.py"

This reverts commit 6080839.

mypy/message_registry.py

@@ -289,7 +289,7 @@ def with_additional_msg(self, info: str) -> ErrorMessage:
 )
 INVALID_TYPE_IGNORE: Final = ErrorMessage('Invalid "type: ignore" comment', codes.SYNTAX)
 TYPE_COMMENT_SYNTAX_ERROR_VALUE: Final = ErrorMessage(
-    'Syntax error in type comment "{}"', codes.SYNTAX
+    'syntax error in type comment "{}"', codes.SYNTAX
 )
 ELLIPSIS_WITH_OTHER_TYPEARGS: Final = ErrorMessage(
     "Ellipses cannot accompany other argument types in function type signature", codes.SYNTAX

test-data/unit/check-columns.test

@@ -328,7 +328,7 @@ if int():
     # TODO: It would be better to point to the type comment
     xyz = 0  # type: blurbnard blarb
 [out]
-main:3:5: error: Syntax error in type comment "blurbnard blarb"
+main:3:5: error: syntax error in type comment "blurbnard blarb"
 
 [case testColumnProperty]
 class A:

test-data/unit/check-errorcodes.test

@@ -42,7 +42,7 @@ def f(): # E: Type signature has too many arguments  [syntax]
     # type: (int) -> None
     1
 
-x = 0  # type: x y  # E: Syntax error in type comment "x y"  [syntax]
+x = 0  # type: x y  # E: syntax error in type comment "x y"  [syntax]
 
 [case testErrorCodeSyntaxError3]
 # This is a bit inconsistent -- syntax error would be more logical?
@@ -720,8 +720,8 @@ main:2: error: Name "y" is not defined  [name-defined]
 x = y  # type: int  # type: ignored[foo]
 x = y  # type: int  # type: ignored [foo]
 [out]
-main:1: error: Syntax error in type comment "int"  [syntax]
-main:2: error: Syntax error in type comment "int"  [syntax]
+main:1: error: syntax error in type comment "int"  [syntax]
+main:2: error: syntax error in type comment "int"  [syntax]
 
 [case testErrorCode__exit__Return]
 class InvalidReturn:

test-data/unit/check-fastparse.test

@@ -4,7 +4,7 @@
 
 [case testFastParseTypeCommentSyntaxError]
 
-x = None # type: a : b  # E: Syntax error in type comment "a : b"
+x = None # type: a : b  # E: syntax error in type comment "a : b"
 
 [case testFastParseInvalidTypeComment]
 
@@ -14,13 +14,13 @@ x = None # type: a + b  # E: Invalid type comment or annotation
 -- This happens in both parsers.
 [case testFastParseFunctionAnnotationSyntaxError]
 
-def f():  # E: Syntax error in type comment "None -> None" # N: Suggestion: wrap argument types in parentheses
+def f():  # E: syntax error in type comment "None -> None" # N: Suggestion: wrap argument types in parentheses
   # type: None -> None
   pass
 
 [case testFastParseFunctionAnnotationSyntaxErrorSpaces]
 
-def f():  # E: Syntax error in type comment "None -> None" # N: Suggestion: wrap argument types in parentheses
+def f():  # E: syntax error in type comment "None -> None" # N: Suggestion: wrap argument types in parentheses
   # type:             None -> None
   pass
 

test-data/unit/check-literal.test

@@ -19,7 +19,7 @@ reveal_type(g2)  # N: Revealed type is "def (x: Literal['A B'])"
 
 [case testLiteralInvalidTypeComment]
 from typing_extensions import Literal
-def f(x):  # E: Syntax error in type comment "(A[) -> None"
+def f(x):  # E: syntax error in type comment "(A[) -> None"
     # type: (A[) -> None
     pass
 

test-data/unit/parse-errors.test

@@ -113,116 +113,116 @@ file:1: error: Invalid syntax
 0
 x = 0 # type: A A
 [out]
-file:2: error: Syntax error in type comment "A A"
+file:2: error: syntax error in type comment "A A"
 
 [case testInvalidTypeComment2]
 0
 x = 0 # type: A[
 [out]
-file:2: error: Syntax error in type comment "A["
+file:2: error: syntax error in type comment "A["
 
 [case testInvalidTypeComment3]
 0
 x = 0 # type:
 [out]
-file:2: error: Syntax error in type comment ""
+file:2: error: syntax error in type comment ""
 
 [case testInvalidTypeComment4]
 0
 x = 0 # type: *
 [out]
-file:2: error: Syntax error in type comment "*"
+file:2: error: syntax error in type comment "*"
 
 [case testInvalidTypeComment5]
 0
 x = 0 # type:# some comment
 [out]
-file:2: error: Syntax error in type comment ""
+file:2: error: syntax error in type comment ""
 
 [case testInvalidTypeComment6]
 0
 x = 0 # type: *# comment #6
 [out]
-file:2: error: Syntax error in type comment "*"
+file:2: error: syntax error in type comment "*"
 
 [case testInvalidTypeComment7]
 0
 x = 0 # type: A B #comment #7
 [out]
-file:2: error: Syntax error in type comment "A B"
+file:2: error: syntax error in type comment "A B"
 
 [case testInvalidSignatureInComment1]
 def f(): # type: x
   pass
 [out]
-file:1: error: Syntax error in type comment "x"
+file:1: error: syntax error in type comment "x"
 file:1: note: Suggestion: wrap argument types in parentheses
 
 [case testInvalidSignatureInComment2]
 def f(): # type:
   pass
 [out]
-file:1: error: Syntax error in type comment ""
+file:1: error: syntax error in type comment ""
 
 [case testInvalidSignatureInComment3]
 def f(): # type: (
   pass
 [out]
-file:1: error: Syntax error in type comment "("
+file:1: error: syntax error in type comment "("
 
 [case testInvalidSignatureInComment4]
 def f(): # type: (.
   pass
 [out]
-file:1: error: Syntax error in type comment "(."
+file:1: error: syntax error in type comment "(."
 
 [case testInvalidSignatureInComment5]
 def f(): # type: (x
   pass
 [out]
-file:1: error: Syntax error in type comment "(x"
+file:1: error: syntax error in type comment "(x"
 
 [case testInvalidSignatureInComment6]
 def f(): # type: (x)
   pass
 [out]
-file:1: error: Syntax error in type comment "(x)"
+file:1: error: syntax error in type comment "(x)"
 
 [case testInvalidSignatureInComment7]
 def f(): # type: (x) -
   pass
 [out]
-file:1: error: Syntax error in type comment "(x) -"
+file:1: error: syntax error in type comment "(x) -"
 
 [case testInvalidSignatureInComment8]
 def f(): # type: (x) ->
   pass
 [out]
-file:1: error: Syntax error in type comment "(x) ->"
+file:1: error: syntax error in type comment "(x) ->"
 
 [case testInvalidSignatureInComment9]
 def f(): # type: (x) -> .
   pass
 [out]
-file:1: error: Syntax error in type comment "(x) -> ."
+file:1: error: syntax error in type comment "(x) -> ."
 
 [case testInvalidSignatureInComment10]
 def f(): # type: (x) -> x x
   pass
 [out]
-file:1: error: Syntax error in type comment "(x) -> x x"
+file:1: error: syntax error in type comment "(x) -> x x"
 
 [case testInvalidSignatureInComment11]
 def f(): # type: # abc comment
   pass
 [out]
-file:1: error: Syntax error in type comment ""
+file:1: error: syntax error in type comment ""
 
 [case testInvalidSignatureInComment12]
 def f(): # type: (x) -> x x # comment #2
   pass
 [out]
-file:1: error: Syntax error in type comment "(x) -> x x"
+file:1: error: syntax error in type comment "(x) -> x x"
 
 
 [case testDuplicateSignatures1]
@@ -269,7 +269,7 @@ def g(*x, **y): # type: (*X, *Y) -> Z
     pass
 [out]
 file:1: error: Inconsistent use of "*" in function signature
-file:3: error: Syntax error in type comment
+file:3: error: syntax error in type comment
 file:3: error: Inconsistent use of "*" in function signature
 file:3: error: Inconsistent use of "**" in function signature