checkers/testdata: remove files needed for Go 1.18 (#1458)

Author: alexandear

checkers/testdata/badSyncOnceFunc/negative_tests.go

@@ -1,5 +1,3 @@
-//go:build go1.21
-
 package checker_test
 
 import (

checkers/testdata/badSyncOnceFunc/positive_tests.go

@@ -1,5 +1,3 @@
-//go:build go1.21
-
 package checker_test
 
 import (

checkers/testdata/hugeParam/negative_tests.go

@@ -20,3 +20,11 @@ func (x *bigStruct) bigRecvPtr(y *[2]bigStruct) {}
 
 // String must be ignored #1168.
 func (x bigStruct) String() string { return "" }
+
+func genericFunc[T comparable](x T) {}
+
+type Maybe[V any] struct {
+	value V
+}
+
+func (m Maybe[V]) Fn() {}

checkers/testdata/hugeParam/negative_tests_go118.go

@@ -29,3 +29,7 @@ func fixedNewExpressions() {
 	_ = interface{}(nil)
 	_ = examplepkg.InterfaceType(nil)
 }
+
+func genericNew[T any]() T {
+	return *new(T)
+}

checkers/testdata/newDeref/negative_tests.go

@@ -25,3 +25,16 @@ func multiline(
 ) int {
 	return 0
 }
+
+func genericGood1[T any](a T, b, c int)                {}
+func genericGood2[T any](a, b T, c int)                {}
+func genericGood3[T any](a T)                          {}
+func genericGood4[T any]()                             {}
+func genericGood5[T any, Y any](a, b T, c int, d, e Y) {}
+
+func genericUnnamed[T any](T, T) {}
+
+func genericUnnamedResults[T any]() (T, T) {
+	var t T
+	return t, t
+}

checkers/testdata/newDeref/negative_tests118.go

@@ -44,3 +44,20 @@ func withBlank1(_, _ int, _ int, _ int32) {}
 
 /*! func() (_, _ int, _ int, _ int32) could be replaced with func() (_, _, _ int, _ int32) */
 func withBlank2() (_, _ int, _ int, _ int32) { return }
+
+/*! func[T any]() (a T, b T, c T) could be replaced with func[T any]() (a, b, c T) */
+func genericSimple1[T any]() (a T, b T, c T) { return a, b, c }
+
+/*! func[T any](a T, b T, c T) could be replaced with func[T any](a, b, c T) */
+func genericSimple2[T any](a T, b T, c T) {}
+
+/*! func[T any, Y any](a T, b T, c int, d Y, e Y) could be replaced with func[T any, Y any](a, b T, c int, d, e Y) */
+func genericMixed1[T any, Y any](a T, b T, c int, d Y, e Y) {}
+
+/*! func[T any, Y any]() (a T, b T, c int, d Y, e Y) could be replaced with func[T any, Y any]() (a, b T, c int, d, e Y) */
+func genericMixed2[T any, Y any]() (a T, b T, c int, d Y, e Y) { return a, b, c, d, e }
+
+/*! func[T any](a T, b T, c int, d int32, e int32) (f int64, g int64, h T, k T) could be replaced with func[T any](a, b T, c int, d, e int32) (f, g int64, h, k T) */
+func genericMixed3[T any](a T, b T, c int, d int32, e int32) (f int64, g int64, h T, k T) {
+	return f, g, h, k
+}

checkers/testdata/paramTypeCombine/negative_tests.go

@@ -9,3 +9,13 @@ func (r *rec) MethodWithRef() {}
 func (r recv) Method2() {}
 
 func JustFunction() {}
+
+type genericNegativeStruct[T any] struct{ _ []T }
+
+func (_ genericNegativeStruct[T]) Method()         {}
+func (_ *genericNegativeStruct[T]) MethodWithRef() {}
+
+type multiGenericNegativeStruct[T any, X any] struct{ _ []T }
+
+func (_ multiGenericNegativeStruct[T, X]) Method()         {}
+func (_ *multiGenericNegativeStruct[T, X]) MethodWithRef() {}

checkers/testdata/paramTypeCombine/negative_tests_go118.go

@@ -4,3 +4,13 @@ func (r recv) MethodBefore() {}
 
 /*! definition of type 'recv' should appear before its methods */
 type recv struct{}
+
+func (_ genericPositiveStruct[T]) Method() {}
+
+/*! definition of type 'genericPositiveStruct' should appear before its methods */
+type genericPositiveStruct[T any] struct{ _ []T }
+
+func (_ *multiGenericPositiveStruct[T, X]) MethodWithRef() {}
+
+/*! definition of type 'multiGenericPositiveStruct' should appear before its methods */
+type multiGenericPositiveStruct[T any, X any] struct{ _ []T }