[Gardening] Remove unused diagnostic definitions

include/swift/AST/DiagnosticsCommon.def

@@ -145,9 +145,6 @@ ERROR(sdk_node_unrecognized_accessor_kind,none,
 ERROR(circular_reference, none,
       "circular reference", ())
 
-ERROR(redundant_type_alias_define, none,
-      "redundant type alias declaration", ())
-
 NOTE(circular_reference_through, none,
      "through reference here", ())
 

include/swift/AST/DiagnosticsFrontend.def

@@ -316,9 +316,6 @@ NOTE(compiled_module_invalid,none,
 NOTE(compiled_module_invalid_reason,none,
      "unable to load compiled module '%0': %1",
      (StringRef, StringRef))
-ERROR(error_extracting_dependencies_from_cached_module,none,
-      "error extracting dependencies from cached module '%0'",
-      (StringRef))
 ERROR(unknown_forced_module_loading_mode,none,
       "unknown value for SWIFT_FORCE_MODULE_LOADING variable: '%0'",
       (StringRef))

include/swift/AST/DiagnosticsParse.def

@@ -591,8 +591,6 @@ ERROR(sil_dbg_unknown_key,none,
       "unknown key '%0' in debug variable declaration", (StringRef))
 ERROR(sil_objc_with_tail_elements,none,
       "alloc_ref [objc] cannot have tail allocated elements", ())
-ERROR(found_unqualified_instruction_in_qualified_function,none,
-      "found unqualified instruction in qualified function '%0'", (StringRef))
 ERROR(sil_expected_access_kind,none,
       "%0 instruction must have explicit access kind", (StringRef))
 ERROR(sil_expected_access_enforcement,none,
@@ -605,9 +603,6 @@ ERROR(sil_keypath_unknown_component_kind,none,
 ERROR(sil_keypath_computed_property_missing_part,none,
       "keypath %select{gettable|settable}0_property component needs an "
       "%select{id and getter|id, getter, and setter}0", (bool))
-ERROR(sil_keypath_external_missing_part,none,
-      "keypath external component with indices needs an indices_equals and "
-      "indices_hash function", ())
 ERROR(sil_keypath_no_root,none,
       "keypath must have a root component declared",())
 ERROR(sil_keypath_index_not_hashable,none,
@@ -684,8 +679,6 @@ ERROR(sil_witness_protocol_conformance_not_found,none,
       "sil protocol conformance not found", ())
 
 // SIL Coverage Map
-ERROR(sil_coverage_func_not_found, none,
-      "sil function not found %0", (Identifier))
 ERROR(sil_coverage_invalid_hash, none,
       "expected coverage hash", ())
 ERROR(sil_coverage_expected_lbrace, none,
@@ -1280,12 +1273,6 @@ ERROR(expr_selector_expected_rparen,PointsToFirstBadToken,
       "expected ')' to complete '#selector' expression", ())
 
 // Type-of expressions.
-ERROR(expr_typeof_expected_label_of,PointsToFirstBadToken,
-      "expected argument label 'of:' within 'type(...)'", ())
-ERROR(expr_typeof_expected_expr,PointsToFirstBadToken,
-      "expected an expression within 'type(of: ...)'", ())
-ERROR(expr_typeof_expected_rparen,PointsToFirstBadToken,
-      "expected ')' to complete 'type(of: ...)' expression", ())
 ERROR(expr_dynamictype_deprecated,PointsToFirstBadToken,
       "'.dynamicType' is deprecated. Use 'type(of: ...)' instead", ())
 
@@ -1480,10 +1467,6 @@ WARNING(attr_warn_unused_result_removed,none,
 ERROR(attr_warn_unused_result_expected_rparen,none,
       "expected ')' after 'warn_unused_result' attribute", ())
 
-// escaping
-ERROR(attr_escaping_conflicts_noescape,none,
-      "@escaping conflicts with @noescape", ())
-
 // _specialize
 ERROR(attr_specialize_missing_colon,none,
       "missing ':' after %0 in '_specialize' attribute", (StringRef))

include/swift/AST/DiagnosticsRefactoring.def

@@ -64,8 +64,6 @@ ERROR(invalid_default_location, none, "given location is not on a default statem
 
 ERROR(no_parent_switch, none, "cannot find enclosing switch statement", ())
 
-ERROR(no_subject_enum, none, "cannot find subject enum in the enclosing switch statement", ())
-
 ERROR(no_remaining_cases, none, "no remaining cases to expand", ())
 
 WARNING(mismatched_rename, none, "the name at the given location cannot be renamed to '%0'", (StringRef))

include/swift/AST/DiagnosticsSIL.def

@@ -222,8 +222,6 @@ ERROR(self_inside_catch_superselfinit,none,
       "'self' used inside 'catch' block reachable from "
       "%select{super|self}0.init call",
       (unsigned))
-ERROR(return_from_init_without_initing_self,none,
-      "return from initializer before 'self.init' call or assignment to 'self'", ())
 ERROR(return_from_init_without_initing_stored_properties,none,
       "return from initializer without initializing all"
       " stored properties", ())
@@ -324,9 +322,6 @@ ERROR(integer_conversion_overflow_builtin_types,none,
 WARNING(integer_conversion_overflow_warn,none,
       "integer overflows when converted from %0 to %1",
       (Type, Type))
-ERROR(integer_conversion_sign_error,none,
-      "negative integer cannot be converted to unsigned type %0",
-      (Type))
 ERROR(negative_integer_literal_overflow_unsigned,none,
       "negative integer '%1' overflows when stored into unsigned type %0",
       (Type, StringRef))

include/swift/AST/DiagnosticsSema.def

@@ -123,8 +123,6 @@ ERROR(expected_result_in_contextual_member,none,
 
 ERROR(unexpected_arguments_in_enum_case,none,
       "enum case %0 has no associated values", (DeclName))
-ERROR(unexpected_arguments_in_contextual_member,none,
-      "%0 %1 is not a function", (DescriptiveDeclKind, DeclName))
 
 ERROR(could_not_use_value_member,none,
       "member %1 cannot be used on value of type %0", (Type, DeclName))
@@ -261,9 +259,6 @@ ERROR(cannot_pass_rvalue_inout,none,
 ERROR(cannot_provide_default_value_inout,none,
       "cannot provide default value to inout parameter %0", (Identifier))
 
-ERROR(cannot_assign_to_literal,none,
-      "cannot assign to a literal value", ())
-
 ERROR(cannot_call_with_no_params,none,
       "cannot invoke %select{|initializer for type }1'%0' with no arguments",
       (StringRef, bool))
@@ -440,8 +435,6 @@ NOTE(candidate_performs_illegal_ephemeral_conv,none,
 
 ERROR(cannot_convert_argument_value_protocol,none,
       "argument type %0 does not conform to expected type %1", (Type, Type))
-ERROR(cannot_convert_partial_argument_value_protocol,none,
-      "in argument type %0, %1 does not conform to expected type %2", (Type, Type, Type))
 
 ERROR(cannot_convert_argument_value_nil,none,
       "'nil' is not compatible with expected argument type %0", (Type))
@@ -566,9 +559,6 @@ ERROR(cannot_convert_sequence_element_protocol,none,
 ERROR(throws_functiontype_mismatch,none,
       "invalid conversion from throwing function of type %0 to "
       "non-throwing function type %1", (Type, Type))
-ERROR(noescape_functiontype_mismatch,none,
-      "invalid conversion from non-escaping function of type %0 to "
-      "potentially escaping function type %1", (Type, Type))
 
 // Key-path expressions.
 ERROR(expr_keypath_no_objc_runtime,none,
@@ -1158,9 +1148,6 @@ ERROR(instance_member_in_initializer,none,
 ERROR(instance_member_in_default_parameter,none,
       "cannot use instance member %0 as a default parameter", (DeclName))
 
-ERROR(invalid_initialization_parameter_same_type,none,
-      "invalid initializer call with same type %0 as parameter", (Type))
-
 ERROR(missing_argument_named,none,
       "missing argument for parameter %0 in call", (Identifier))
 ERROR(missing_argument_positional,none,
@@ -1393,8 +1380,6 @@ ERROR(access_control_open_bad_decl,none,
       "only classes and overridable class members can be declared 'open';"
       " use 'public'", ())
 
-ERROR(invalid_decl_attribute_simple,none,
-      "attribute cannot be applied to declaration", ())
 ERROR(invalid_decl_attribute,none,
       "'%0' attribute cannot be applied to this declaration", (DeclAttribute))
 ERROR(invalid_decl_modifier,none,
@@ -2228,9 +2213,6 @@ ERROR(recursive_same_type_constraint,none,
       "same-type constraint %0 == %1 is recursive", (Type, Type))
 ERROR(recursive_superclass_constraint,none,
       "superclass constraint %0 : %1 is recursive", (Type, Type))
-ERROR(requires_same_type_conflict,none,
-      "%select{associated type|generic parameter}0 %1 cannot be equal to "
-      "both %2 and %3", (bool, Type, Type, Type))
 ERROR(requires_generic_param_same_type_does_not_conform,none,
       "same-type constraint type %0 does not conform to required protocol %1",
       (Type, Identifier))
@@ -2905,9 +2887,6 @@ NOTE(found_candidate_type,none,
 
 ERROR(no_MaxBuiltinFloatType_found,none,
    "standard library error: _MaxBuiltinFloatType is not properly defined", ())
-ERROR(integer_literal_overflows_maxwidth, none,
-   "integer literal needs %1 bits, exceeding limit of %0 bits",
-   (unsigned, unsigned))
 
 ERROR(no_member_of_module,none,
       "module %0 has no member named %1", (Identifier, DeclName))
@@ -3078,8 +3057,6 @@ ERROR(missing_protocol,none,
       "missing protocol %0", (Identifier))
 ERROR(nil_literal_broken_proto,none,
       "protocol 'ExpressibleByNilLiteral' is broken", ())
-ERROR(array_protocol_broken,none,
-      "protocol 'ExpressibleByArrayLiteral' is broken", ())
 ERROR(builtin_integer_literal_broken_proto,none,
       "protocol '_ExpressibleByBuiltinIntegerLiteral' is broken", ())
 ERROR(integer_literal_broken_proto,none,
@@ -3120,8 +3097,6 @@ ERROR(should_use_empty_dictionary_literal,none,
       "use [:] to get an empty dictionary literal", ())
 
 // Dictionary literals
-ERROR(dictionary_protocol_broken,none,
-      "ExpressibleByDictionaryLiteral protocol definition is broken", ())
 ERROR(type_is_not_dictionary,none,
       "contextual type %0 cannot be used with dictionary literal", (Type))
 
@@ -3432,12 +3407,6 @@ ERROR(assignment_let_property_delegating_init,none,
       "'let' property %0 may not be initialized directly; use "
       "\"self.init(...)\" or \"self = ...\" instead", (DeclName))
 
-// ForEach Stmt
-ERROR(sequence_protocol_broken,none,
-      "SequenceType protocol definition is broken", ())
-ERROR(iterator_protocol_broken,none,
-      "IteratorProtocol protocol definition is broken", ())
-
 ERROR(label_shadowed, none,
       "label %0 cannot be reused on an inner statement", (Identifier))
 ERROR(break_outside_loop,none,
@@ -3571,9 +3540,6 @@ ERROR(closure_tuple_parameter_destructuring,none,
 ERROR(closure_tuple_parameter_destructuring_implicit,none,
       "closure tuple parameter %0 does not support destructuring "
       "with implicit parameters", (Type))
-ERROR(nested_tuple_parameter_destructuring,none,
-      "nested tuple parameter %0 of function %1 "
-      "does not support destructuring", (Type, Type))
 ERROR(single_tuple_parameter_mismatch_special,none,
       "%0 expects a single parameter of type %1%2",
       (DescriptiveDeclKind, Type, StringRef))
@@ -4123,14 +4089,9 @@ ERROR(nonlocal_bridged_to_objc,none,
       "conformance of %0 to %1 can only be written in module %2",
       (Identifier, Identifier, Identifier))
 
-ERROR(broken_bridged_to_objc_protocol,none,
-      "_BridgedToObjectiveC protocol is broken", ())
-
 ERROR(missing_bridging_function,Fatal,
       "missing '%select{_forceBridgeFromObjectiveC|"
       "_conditionallyBridgeFromObjectiveC}0'", (bool))
-ERROR(missing_nserror_bridging_function,none,
-      "missing _bridgeNSError", ())
 
 #define OBJC_DIAG_SELECT "%select{initializer %1|implicit initializer %1|deinitializer|implicit deinitializer|method %1|getter for %1|subscript getter|setter for %1|subscript setter}0"
 
@@ -4489,8 +4450,6 @@ ERROR(specialize_attr_only_generic_param_req,none,
       "Only requirements on generic parameters are supported by '_specialize' attribute", ())
 ERROR(specialize_attr_only_one_concrete_same_type_req,none,
       "Only one concrete type should be used in the same-type requirement in '_specialize' attribute", ())
-ERROR(specialize_attr_non_nominal_type_constraint_req,none,
-      "Only conformances to nominal types are supported by '_specialize' attribute", ())
 ERROR(specialize_attr_non_protocol_type_constraint_req,none,
       "Only conformances to protocol types are supported by '_specialize' attribute", ())
 ERROR(specialize_attr_type_parameter_count_mismatch,none,