Revert "Update unseparated_literal_suffix tests"

This reverts commit 33fb6782ce5056e33cce3bff74f803d2a521c51f.

Author: dswij

tests/ui-toml/separated_literal_suffix/clippy.toml

@@ -0,0 +1,42 @@
+// run-rustfix
+// aux-build:proc_macro_derive.rs
+
+#![warn(clippy::unseparated_literal_suffix)]
+#![allow(dead_code)]
+
+#[macro_use]
+extern crate proc_macro_derive;
+
+// Test for proc-macro attribute
+#[derive(ClippyMiniMacroTest)]
+struct Foo;
+
+macro_rules! lit_from_macro {
+    () => {
+        42_usize
+    };
+}
+
+fn main() {
+    let _ok1 = 1234_i32;
+    let _ok2 = 1234_isize;
+    let _ok3 = 0x123_isize;
+    let _fail1 = 1234_i32;
+    let _fail2 = 1234_u32;
+    let _fail3 = 1234_isize;
+    let _fail4 = 1234_usize;
+    let _fail5 = 0x123_isize;
+
+    let _okf1 = 1.5_f32;
+    let _okf2 = 1_f32;
+    let _failf1 = 1.5_f32;
+    let _failf2 = 1_f32;
+
+    // Test for macro
+    let _ = lit_from_macro!();
+
+    // Counter example
+    let _ = line!();
+    // Because `assert!` contains `line!()` macro.
+    assert_eq!(4897_u32, 32223);
+}

tests/ui-toml/separated_literal_suffix/literal_suffix.rs

@@ -0,0 +1,42 @@
+// run-rustfix
+// aux-build:proc_macro_derive.rs
+
+#![warn(clippy::unseparated_literal_suffix)]
+#![allow(dead_code)]
+
+#[macro_use]
+extern crate proc_macro_derive;
+
+// Test for proc-macro attribute
+#[derive(ClippyMiniMacroTest)]
+struct Foo;
+
+macro_rules! lit_from_macro {
+    () => {
+        42usize
+    };
+}
+
+fn main() {
+    let _ok1 = 1234_i32;
+    let _ok2 = 1234_isize;
+    let _ok3 = 0x123_isize;
+    let _fail1 = 1234i32;
+    let _fail2 = 1234u32;
+    let _fail3 = 1234isize;
+    let _fail4 = 1234usize;
+    let _fail5 = 0x123isize;
+
+    let _okf1 = 1.5_f32;
+    let _okf2 = 1_f32;
+    let _failf1 = 1.5f32;
+    let _failf2 = 1f32;
+
+    // Test for macro
+    let _ = lit_from_macro!();
+
+    // Counter example
+    let _ = line!();
+    // Because `assert!` contains `line!()` macro.
+    assert_eq!(4897u32, 32223);
+}

tests/ui-toml/separated_literal_suffix/literal_suffix.stderr

@@ -0,0 +1,63 @@
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:24:18
+   |
+LL |     let _fail1 = 1234i32;
+   |                  ^^^^^^^ help: add an underscore: `1234_i32`
+   |
+   = note: `-D clippy::unseparated-literal-suffix` implied by `-D warnings`
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:25:18
+   |
+LL |     let _fail2 = 1234u32;
+   |                  ^^^^^^^ help: add an underscore: `1234_u32`
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:26:18
+   |
+LL |     let _fail3 = 1234isize;
+   |                  ^^^^^^^^^ help: add an underscore: `1234_isize`
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:27:18
+   |
+LL |     let _fail4 = 1234usize;
+   |                  ^^^^^^^^^ help: add an underscore: `1234_usize`
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:28:18
+   |
+LL |     let _fail5 = 0x123isize;
+   |                  ^^^^^^^^^^ help: add an underscore: `0x123_isize`
+
+error: float type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:32:19
+   |
+LL |     let _failf1 = 1.5f32;
+   |                   ^^^^^^ help: add an underscore: `1.5_f32`
+
+error: float type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:33:19
+   |
+LL |     let _failf2 = 1f32;
+   |                   ^^^^ help: add an underscore: `1_f32`
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:16:9
+   |
+LL |         42usize
+   |         ^^^^^^^ help: add an underscore: `42_usize`
+...
+LL |     let _ = lit_from_macro!();
+   |             ----------------- in this macro invocation
+   |
+   = note: this error originates in the macro `lit_from_macro` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: integer type suffix should be separated by an underscore
+  --> $DIR/unseparated_prefix_literals.rs:41:16
+   |
+LL |     assert_eq!(4897u32, 32223);
+   |                ^^^^^^^ help: add an underscore: `4897_u32`
+
+error: aborting due to 9 previous errors
+