Add diagnostic items for pub mod consts of FP types

They will be used in Clippy.

Author: samueltardieu

compiler/rustc_span/src/symbol.rs

@@ -980,10 +980,12 @@ symbols! {
         external_doc,
         f,
         f16,
+        f16_consts_mod,
         f16_epsilon,
         f16_nan,
         f16c_target_feature,
         f32,
+        f32_consts_mod,
         f32_epsilon,
         f32_legacy_const_digits,
         f32_legacy_const_epsilon,
@@ -1001,6 +1003,7 @@ symbols! {
         f32_legacy_const_radix,
         f32_nan,
         f64,
+        f64_consts_mod,
         f64_epsilon,
         f64_legacy_const_digits,
         f64_legacy_const_epsilon,
@@ -1018,6 +1021,7 @@ symbols! {
         f64_legacy_const_radix,
         f64_nan,
         f128,
+        f128_consts_mod,
         f128_epsilon,
         f128_nan,
         fabsf16,

library/core/src/num/f128.rs

@@ -18,6 +18,7 @@ use crate::{intrinsics, mem};
 
 /// Basic mathematical constants.
 #[unstable(feature = "f128", issue = "116909")]
+#[rustc_diagnostic_item = "f128_consts_mod"]
 pub mod consts {
     // FIXME: replace with mathematical constants from cmath.
 

library/core/src/num/f16.rs

@@ -20,6 +20,7 @@ use crate::{intrinsics, mem};
 
 /// Basic mathematical constants.
 #[unstable(feature = "f16", issue = "116909")]
+#[rustc_diagnostic_item = "f16_consts_mod"]
 pub mod consts {
     // FIXME: replace with mathematical constants from cmath.
 

library/core/src/num/f32.rs

@@ -277,6 +277,7 @@ pub const NEG_INFINITY: f32 = f32::NEG_INFINITY;
 
 /// Basic mathematical constants.
 #[stable(feature = "rust1", since = "1.0.0")]
+#[rustc_diagnostic_item = "f32_consts_mod"]
 pub mod consts {
     // FIXME: replace with mathematical constants from cmath.
 

library/core/src/num/f64.rs

@@ -277,6 +277,7 @@ pub const NEG_INFINITY: f64 = f64::NEG_INFINITY;
 
 /// Basic mathematical constants.
 #[stable(feature = "rust1", since = "1.0.0")]
+#[rustc_diagnostic_item = "f64_consts_mod"]
 pub mod consts {
     // FIXME: replace with mathematical constants from cmath.