Break up __pin_project_internal

tests/ui/pin_project/conflict-drop.stderr

@@ -13,4 +13,4 @@ error[E0119]: conflicting implementations of trait `_::MustNotImplDrop` for type
   | |_first implementation here
   |   conflicting implementation for `Foo<_, _>`
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_make_drop_impl` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/pin_project/conflict-unpin.stderr

@@ -13,7 +13,7 @@ error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type
 14 |   impl<T, U> Unpin for Foo<T, U> where T: Unpin {} // Conditional Unpin impl
    |   --------------------------------------------- first implementation here
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_unpin_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Bar<_, _>`
   --> tests/ui/pin_project/conflict-unpin.rs:18:1
@@ -30,7 +30,7 @@ error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type
 27 |   impl<T, U> Unpin for Bar<T, U> {} // Non-conditional Unpin impl
    |   ------------------------------ first implementation here
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_unpin_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type `Baz<_, _>`
   --> tests/ui/pin_project/conflict-unpin.rs:29:1
@@ -47,4 +47,4 @@ error[E0119]: conflicting implementations of trait `std::marker::Unpin` for type
 38 |   impl<T: Unpin, U: Unpin> Unpin for Baz<T, U> {} // Conditional Unpin impl
    |   -------------------------------------------- first implementation here
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_unpin_impl` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/pin_project/invalid.stderr

@@ -9,7 +9,7 @@ error: no rules expected the token `struct`
 8 | | }
   | |_^ no rules expected this token in macro call
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `struct`
  --> tests/ui/pin_project/invalid.rs:3:1
@@ -22,7 +22,7 @@ error: no rules expected the token `struct`
 8 | | }
   | |_^ no rules expected this token in macro call
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `struct`
   --> tests/ui/pin_project/invalid.rs:17:1
@@ -36,7 +36,7 @@ error: no rules expected the token `struct`
 23 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `struct`
   --> tests/ui/pin_project/invalid.rs:17:1
@@ -50,7 +50,7 @@ error: no rules expected the token `struct`
 23 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: cannot find attribute `pin` in this scope
   --> tests/ui/pin_project/invalid.rs:11:7

tests/ui/pin_project/overlapping_lifetime_names.stderr

@@ -46,7 +46,7 @@ error[E0496]: lifetime name `'__pin` shadows a lifetime name that is already in
 8 | | }
   | |_^ lifetime `'__pin` already in scope
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_struct_make_proj_method` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0496]: lifetime name `'__pin` shadows a lifetime name that is already in scope
  --> tests/ui/pin_project/overlapping_lifetime_names.rs:3:1
@@ -60,7 +60,7 @@ error[E0496]: lifetime name `'__pin` shadows a lifetime name that is already in
 8 | | }
   | |_^ lifetime `'__pin` already in scope
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_struct_make_proj_method` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0263]: lifetime name `'__pin` declared twice in the same scope
  --> tests/ui/pin_project/overlapping_lifetime_names.rs:4:20

tests/ui/pin_project/overlapping_unpin_struct.stderr

@@ -30,4 +30,4 @@ note: required by a bound in `is_unpin`
    |
 16 | fn is_unpin<T: Unpin>() {}
    |                ^^^^^ required by this bound in `is_unpin`
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_unpin_impl` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/pin_project/packed.stderr

@@ -25,7 +25,7 @@ note: the lint level is defined here
    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
    = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_constant` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: reference to packed field is unaligned
   --> tests/ui/pin_project/packed.rs:13:1
@@ -54,4 +54,4 @@ note: the lint level is defined here
    = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
    = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
    = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_constant` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/pin_project/unsupported.stderr

@@ -6,7 +6,7 @@ error: no rules expected the token `}`
 5 | | }
   | |_^ no rules expected this token in macro call
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `}`
  --> tests/ui/pin_project/unsupported.rs:3:1
@@ -16,27 +16,19 @@ error: no rules expected the token `}`
 5 | | }
   | |_^ no rules expected this token in macro call
   |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+  = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: no rules expected the token `[`
- --> tests/ui/pin_project/unsupported.rs:7:1
+error: no rules expected the token `(`
+ --> tests/ui/pin_project/unsupported.rs:8:19
   |
-7 | / pin_project! {
-8 | |     struct Struct2(); //~ ERROR no rules expected the token `(`
-9 | | }
-  | |_^ no rules expected this token in macro call
-  |
-  = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+8 |     struct Struct2(); //~ ERROR no rules expected the token `(`
+  |                   ^ no rules expected this token in macro call
 
-error: no rules expected the token `[`
-  --> tests/ui/pin_project/unsupported.rs:11:1
-   |
-11 | / pin_project! {
-12 | |     struct Struct3; //~ ERROR no rules expected the token `;`
-13 | | }
-   | |_^ no rules expected this token in macro call
+error: no rules expected the token `;`
+  --> tests/ui/pin_project/unsupported.rs:12:19
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+12 |     struct Struct3; //~ ERROR no rules expected the token `;`
+   |                   ^ no rules expected this token in macro call
 
 error: no rules expected the token `enum`
   --> tests/ui/pin_project/unsupported.rs:15:1
@@ -48,7 +40,7 @@ error: no rules expected the token `enum`
 19 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `enum`
   --> tests/ui/pin_project/unsupported.rs:15:1
@@ -60,7 +52,7 @@ error: no rules expected the token `enum`
 19 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `union`
   --> tests/ui/pin_project/unsupported.rs:21:1
@@ -72,7 +64,7 @@ error: no rules expected the token `union`
 25 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: no rules expected the token `union`
   --> tests/ui/pin_project/unsupported.rs:21:1
@@ -84,4 +76,4 @@ error: no rules expected the token `union`
 25 | | }
    | |_^ no rules expected this token in macro call
    |
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_expand` (in Nightly builds, run with -Z macro-backtrace for more info)

tests/ui/pinned_drop/call-drop-inner.stderr

@@ -15,7 +15,7 @@ note: function defined here
 12 | |     }
 13 | | }
    | |_^
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_drop_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: remove the extra argument
    |
 10 |             __drop_inner();

tests/ui/pinned_drop/conditional-drop-impl.stderr

@@ -35,4 +35,4 @@ note: the implementor must specify the same requirement
 23 | |     }
 24 | | }
    | |_^
-   = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::__pin_project_make_drop_impl` (in Nightly builds, run with -Z macro-backtrace for more info)