Rename has_type_attr -> is_type

Summary: This method is not used to describe now deprecated `.type` attribute, but used to check whether a function can be bit-ored with another type to make a union type.

Reviewed By: perehonchuk

Differential Revision: D63905238

fbshipit-source-id: 9a691f3aab261d4a94b8e47f08f4b1481672ba32

Author: stepancheg

starlark/src/typing/function.rs

@@ -39,7 +39,7 @@ use crate::values::typing::type_compiled::alloc::TypeMatcherAlloc;
 pub trait TyCustomFunctionImpl:
     Debug + Eq + Ord + Hash + Allocative + Send + Sync + 'static
 {
-    fn has_type_attr(&self) -> bool {
+    fn is_type(&self) -> bool {
         false
     }
 
@@ -104,7 +104,7 @@ impl<F: TyCustomFunctionImpl> TyCustomImpl for TyCustomFunction<F> {
     ) -> Result<Ty, TypingNoContextOrInternalError> {
         match bin_op {
             // `str | list`.
-            TypingBinOp::BitOr if self.0.has_type_attr() => Ok(Ty::basic(TyBasic::Type)),
+            TypingBinOp::BitOr if self.0.is_type() => Ok(Ty::basic(TyBasic::Type)),
             _ => Err(TypingNoContextOrInternalError::Typing),
         }
     }
@@ -161,7 +161,7 @@ impl TyFunction {
 }
 
 impl TyCustomFunctionImpl for TyFunction {
-    fn has_type_attr(&self) -> bool {
+    fn is_type(&self) -> bool {
         self.type_attr.is_some()
     }
 

starlark/src/values/types/list/globals.rs

@@ -53,7 +53,7 @@ static LIST: Lazy<TyFunction> = Lazy::new(|| {
 });
 
 impl TyCustomFunctionImpl for ListType {
-    fn has_type_attr(&self) -> bool {
+    fn is_type(&self) -> bool {
         true
     }