go/types: rename NewInterface2 to NewInterfaceType

NewInterface2 was introduced with https://go-review.googlesource.com/114317
which fixed #25301. Changed the name to NewInterfaceType to better match
Go naming styles, per discussion with @josharian, @iant, et al.

Change-Id: Ifa4708a5efd4f708295b33c3d20fdc5812e1b4fc
Reviewed-on: https://go-review.googlesource.com/120875Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

api/go1.11.txt

@@ -437,7 +437,7 @@ pkg debug/pe, const IMAGE_FILE_MACHINE_ARM64 = 43620
 pkg debug/pe, const IMAGE_FILE_MACHINE_ARM64 ideal-int
 pkg go/ast, type CompositeLit struct, Incomplete bool
 pkg go/token, method (*File) AddLineColumnInfo(int, string, int, int)
-pkg go/types, func NewInterface2([]*Func, []Type) *Interface
+pkg go/types, func NewInterfaceType([]*Func, []Type) *Interface
 pkg go/types, method (*Interface) EmbeddedType(int) Type
 pkg go/types, method (*Var) Embedded() bool
 pkg net, method (*ListenConfig) Listen(context.Context, string, string) (Listener, error)

src/go/internal/gccgoimporter/parser.go

@@ -600,7 +600,7 @@ func (p *parser) parseInterfaceType(pkg *types.Package) types.Type {
 	}
 	p.expect('}')
 
-	return types.NewInterface2(methods, embeddeds)
+	return types.NewInterfaceType(methods, embeddeds)
 }
 
 // PointerType = "*" ("any" | Type) .

src/go/internal/gcimporter/bimport.go

@@ -536,7 +536,7 @@ func (p *importer) typ(parent *types.Package, tname *types.Named) types.Type {
 			embeddeds = append(embeddeds, p.typ(parent, nil))
 		}
 
-		t := types.NewInterface2(p.methodList(parent, tname), embeddeds)
+		t := types.NewInterfaceType(p.methodList(parent, tname), embeddeds)
 		p.interfaceList = append(p.interfaceList, t)
 		if p.trackAllTypes {
 			p.typList[n] = t

src/go/internal/gcimporter/iimport.go

@@ -535,7 +535,7 @@ func (r *importReader) doType(base *types.Named) types.Type {
 			methods[i] = types.NewFunc(mpos, r.currPkg, mname, msig)
 		}
 
-		typ := types.NewInterface2(methods, embeddeds)
+		typ := types.NewInterfaceType(methods, embeddeds)
 		r.p.interfaceList = append(r.p.interfaceList, typ)
 		return typ
 	}

src/go/types/type.go

@@ -260,7 +260,7 @@ var markComplete = make([]*Func, 0)
 // NewInterface takes ownership of the provided methods and may modify their types by setting
 // missing receivers. To compute the method set of the interface, Complete must be called.
 //
-// Deprecated: Use NewInterface2 instead which allows any (even non-defined) interface types
+// Deprecated: Use NewInterfaceType instead which allows any (even non-defined) interface types
 // to be embedded. This is necessary for interfaces that embed alias type names referring to
 // non-defined (literal) interface types.
 func NewInterface(methods []*Func, embeddeds []*Named) *Interface {
@@ -268,16 +268,16 @@ func NewInterface(methods []*Func, embeddeds []*Named) *Interface {
 	for i, t := range embeddeds {
 		tnames[i] = t
 	}
-	return NewInterface2(methods, tnames)
+	return NewInterfaceType(methods, tnames)
 }
 
-// NewInterface2 returns a new (incomplete) interface for the given methods and embedded types.
+// NewInterfaceType returns a new (incomplete) interface for the given methods and embedded types.
 // Each embedded type must have an underlying type of interface type (this property is not
 // verified for defined types, which may be in the process of being set up and which don't
 // have a valid underlying type yet).
-// NewInterface2 takes ownership of the provided methods and may modify their types by setting
+// NewInterfaceType takes ownership of the provided methods and may modify their types by setting
 // missing receivers. To compute the method set of the interface, Complete must be called.
-func NewInterface2(methods []*Func, embeddeds []Type) *Interface {
+func NewInterfaceType(methods []*Func, embeddeds []Type) *Interface {
 	typ := new(Interface)
 
 	if len(methods) == 0 && len(embeddeds) == 0 {
@@ -344,9 +344,9 @@ func (t *Interface) Method(i int) *Func { return t.allMethods[i] }
 func (t *Interface) Empty() bool { return len(t.allMethods) == 0 }
 
 // Complete computes the interface's method set. It must be called by users of
-// NewInterface after the interface's embedded types are fully defined and
-// before using the interface type in any way other than to form other types.
-// Complete returns the receiver.
+// NewInterfaceType and NewInterface after the interface's embedded types are
+// fully defined and before using the interface type in any way other than to
+// form other types. Complete returns the receiver.
 func (t *Interface) Complete() *Interface {
 	if t.allMethods != nil {
 		return t

src/go/types/typestring_test.go

@@ -162,19 +162,19 @@ func TestIncompleteInterfaces(t *testing.T) {
 		{NewInterface(nil, []*Named{newDefined(NewInterface([]*Func{m}, nil).Complete())}), "interface{T /* incomplete */}"},
 		{NewInterface(nil, []*Named{newDefined(NewInterface([]*Func{m}, nil).Complete())}).Complete(), "interface{T}"},
 
-		{NewInterface2(nil, nil), "interface{/* incomplete */}"},
-		{NewInterface2(nil, nil).Complete(), "interface{}"},
-		{NewInterface2([]*Func{}, nil), "interface{/* incomplete */}"},
-		{NewInterface2([]*Func{}, nil).Complete(), "interface{}"},
-		{NewInterface2(nil, []Type{}), "interface{/* incomplete */}"},
-		{NewInterface2(nil, []Type{}).Complete(), "interface{}"},
-		{NewInterface2([]*Func{m}, nil), "interface{m() /* incomplete */}"},
-		{NewInterface2([]*Func{m}, nil).Complete(), "interface{m()}"},
-		{NewInterface2(nil, []Type{new(Interface).Complete()}), "interface{interface{} /* incomplete */}"},
-		{NewInterface2(nil, []Type{new(Interface).Complete()}).Complete(), "interface{interface{}}"},
-		{NewInterface2(nil, []Type{NewInterface2([]*Func{m}, nil)}), "interface{interface{m() /* incomplete */} /* incomplete */}"},
-		{NewInterface2(nil, []Type{NewInterface2([]*Func{m}, nil).Complete()}), "interface{interface{m()} /* incomplete */}"},
-		{NewInterface2(nil, []Type{NewInterface2([]*Func{m}, nil).Complete()}).Complete(), "interface{interface{m()}}"},
+		{NewInterfaceType(nil, nil), "interface{/* incomplete */}"},
+		{NewInterfaceType(nil, nil).Complete(), "interface{}"},
+		{NewInterfaceType([]*Func{}, nil), "interface{/* incomplete */}"},
+		{NewInterfaceType([]*Func{}, nil).Complete(), "interface{}"},
+		{NewInterfaceType(nil, []Type{}), "interface{/* incomplete */}"},
+		{NewInterfaceType(nil, []Type{}).Complete(), "interface{}"},
+		{NewInterfaceType([]*Func{m}, nil), "interface{m() /* incomplete */}"},
+		{NewInterfaceType([]*Func{m}, nil).Complete(), "interface{m()}"},
+		{NewInterfaceType(nil, []Type{new(Interface).Complete()}), "interface{interface{} /* incomplete */}"},
+		{NewInterfaceType(nil, []Type{new(Interface).Complete()}).Complete(), "interface{interface{}}"},
+		{NewInterfaceType(nil, []Type{NewInterfaceType([]*Func{m}, nil)}), "interface{interface{m() /* incomplete */} /* incomplete */}"},
+		{NewInterfaceType(nil, []Type{NewInterfaceType([]*Func{m}, nil).Complete()}), "interface{interface{m()} /* incomplete */}"},
+		{NewInterfaceType(nil, []Type{NewInterfaceType([]*Func{m}, nil).Complete()}).Complete(), "interface{interface{m()}}"},
 	} {
 		got := test.typ.String()
 		if got != test.want {

src/go/types/universe.go

@@ -80,7 +80,7 @@ func defPredeclaredTypes() {
 	res := NewVar(token.NoPos, nil, "", Typ[String])
 	sig := &Signature{results: NewTuple(res)}
 	err := NewFunc(token.NoPos, nil, "Error", sig)
-	typ := &Named{underlying: NewInterface2([]*Func{err}, nil).Complete()}
+	typ := &Named{underlying: NewInterfaceType([]*Func{err}, nil).Complete()}
 	sig.recv = NewVar(token.NoPos, nil, "", typ)
 	def(NewTypeName(token.NoPos, nil, "error", typ))
 }