Use integer assoc consts in more lint example code

clippy_lints/src/neg_cmp_op_on_partial_ord.rs

@@ -25,13 +25,13 @@ declare_clippy_lint! {
     ///
     /// // Bad
     /// let a = 1.0;
-    /// let b = std::f64::NAN;
+    /// let b = f64::NAN;
     ///
     /// let _not_less_or_equal = !(a <= b);
     ///
     /// // Good
     /// let a = 1.0;
-    /// let b = std::f64::NAN;
+    /// let b = f64::NAN;
     ///
     /// let _not_less_or_equal = match a.partial_cmp(&b) {
     ///     None | Some(Ordering::Greater) => true,

clippy_lints/src/types.rs

@@ -837,7 +837,7 @@ declare_clippy_lint! {
     ///
     /// **Example:**
     /// ```rust
-    /// let x = std::u64::MAX;
+    /// let x = u64::MAX;
     /// x as f64;
     /// ```
     pub CAST_PRECISION_LOSS,
@@ -904,7 +904,7 @@ declare_clippy_lint! {
     ///
     /// **Example:**
     /// ```rust
-    /// std::u32::MAX as i32; // will yield a value of `-1`
+    /// u32::MAX as i32; // will yield a value of `-1`
     /// ```
     pub CAST_POSSIBLE_WRAP,
     pedantic,
@@ -1752,7 +1752,7 @@ declare_clippy_lint! {
     /// ```rust
     /// let vec: Vec<isize> = Vec::new();
     /// if vec.len() <= 0 {}
-    /// if 100 > std::i32::MAX {}
+    /// if 100 > i32::MAX {}
     /// ```
     pub ABSURD_EXTREME_COMPARISONS,
     correctness,