follow clippy suggestion on referring to float constants

Author: dwrensha

capnpc/src/codegen.rs

@@ -2990,12 +2990,12 @@ fn generate_node(
 
                 (type_::Float32(()), value::Float32(f)) => {
                     let literal = match f.classify() {
-                        std::num::FpCategory::Nan => "::core::f32::NAN".into(),
+                        std::num::FpCategory::Nan => "f32::NAN".into(),
                         std::num::FpCategory::Infinite => {
                             if f.is_sign_positive() {
-                                "::core::f32::INFINITY".into()
+                                "f32::INFINITY".into()
                             } else {
-                                "::core::f32::NEG_INFINITY".into()
+                                "f32::NEG_INFINITY".into()
                             }
                         }
                         _ => format!("{f:e}"),
@@ -3005,12 +3005,12 @@ fn generate_node(
 
                 (type_::Float64(()), value::Float64(f)) => {
                     let literal = match f.classify() {
-                        std::num::FpCategory::Nan => "::core::f64::NAN".into(),
+                        std::num::FpCategory::Nan => "f64::NAN".into(),
                         std::num::FpCategory::Infinite => {
                             if f.is_sign_positive() {
-                                "::core::f64::INFINITY".into()
+                                "f64::INFINITY".into()
                             } else {
-                                "::core::f64::NEG_INFINITY".into()
+                                "f64::NEG_INFINITY".into()
                             }
                         }
                         _ => format!("{f:e}"),