[AVR] Re-bless the 'test/ui/symbol-names' tests

Adding a new ABI changes the hashes of all previous ABIs.

Fix suggested by @shepmaster in
#69478 (comment).

src/test/ui/symbol-names/basic.legacy.stderr

@@ -1,10 +1,10 @@
-error: symbol-name(_ZN5basic4main17h81759b0695851718E)
+error: symbol-name(_ZN5basic4main17h7bbff4a01206d8c2E)
   --> $DIR/basic.rs:8:1
    |
 LL | #[rustc_symbol_name]
    | ^^^^^^^^^^^^^^^^^^^^
 
-error: demangling(basic::main::h81759b0695851718)
+error: demangling(basic::main::h7bbff4a01206d8c2)
   --> $DIR/basic.rs:8:1
    |
 LL | #[rustc_symbol_name]

src/test/ui/symbol-names/impl1.legacy.stderr

@@ -1,10 +1,10 @@
-error: symbol-name(_ZN5impl13foo3Foo3bar17h92cf46db76791039E)
+error: symbol-name(_ZN5impl13foo3Foo3bar17hf9d7d0e61617a4b8E)
   --> $DIR/impl1.rs:16:9
    |
 LL |         #[rustc_symbol_name]
    |         ^^^^^^^^^^^^^^^^^^^^
 
-error: demangling(impl1::foo::Foo::bar::h92cf46db76791039)
+error: demangling(impl1::foo::Foo::bar::hf9d7d0e61617a4b8)
   --> $DIR/impl1.rs:16:9
    |
 LL |         #[rustc_symbol_name]
@@ -22,13 +22,13 @@ error: def-path(foo::Foo::bar)
 LL |         #[rustc_def_path]
    |         ^^^^^^^^^^^^^^^^^
 
-error: symbol-name(_ZN5impl13bar33_$LT$impl$u20$impl1..foo..Foo$GT$3baz17h90c4a800b1aa0df0E)
+error: symbol-name(_ZN5impl13bar33_$LT$impl$u20$impl1..foo..Foo$GT$3baz17h6435cd4293f0ad82E)
   --> $DIR/impl1.rs:34:9
    |
 LL |         #[rustc_symbol_name]
    |         ^^^^^^^^^^^^^^^^^^^^
 
-error: demangling(impl1::bar::<impl impl1::foo::Foo>::baz::h90c4a800b1aa0df0)
+error: demangling(impl1::bar::<impl impl1::foo::Foo>::baz::h6435cd4293f0ad82)
   --> $DIR/impl1.rs:34:9
    |
 LL |         #[rustc_symbol_name]

src/test/ui/symbol-names/impl1.rs

@@ -4,7 +4,7 @@
 //[legacy]compile-flags: -Z symbol-mangling-version=legacy
     //[v0]compile-flags: -Z symbol-mangling-version=v0
 //[legacy]normalize-stderr-32bit: "h5ef5dfc14aeecbfc" -> "SYMBOL_HASH"
-//[legacy]normalize-stderr-64bit: "h9e54d216f70fcbc5" -> "SYMBOL_HASH"
+//[legacy]normalize-stderr-64bit: "hd9e82dc29c74d643" -> "SYMBOL_HASH"
 
 #![feature(optin_builtin_traits, rustc_attrs)]
 #![allow(dead_code)]

src/test/ui/symbol-names/issue-60925.legacy.stderr

@@ -1,10 +1,10 @@
-error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17hc86312d25b60f6eeE)
+error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17h91943b9c102410e4E)
   --> $DIR/issue-60925.rs:22:9
    |
 LL |         #[rustc_symbol_name]
    |         ^^^^^^^^^^^^^^^^^^^^
 
-error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::hc86312d25b60f6ee)
+error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::h91943b9c102410e4)
   --> $DIR/issue-60925.rs:22:9
    |
 LL |         #[rustc_symbol_name]

src/tools/compiletest/src/header/tests.rs

@@ -27,6 +27,12 @@ fn test_parse_normalization_string() {
     let first = parse_normalization_string(&mut s);
     assert_eq!(first, Some("something (32 bits)".to_owned()));
     assert_eq!(s, " -> \"something ($WORD bits).");
+
+    // Nothing to normalize (No quotes, 16-bit)
+    let mut s = "normalize-stderr-16bit: something (16 bits) -> something ($WORD bits).";
+    let first = parse_normalization_string(&mut s);
+    assert_eq!(first, None);
+    assert_eq!(s, r#"normalize-stderr-16bit: something (16 bits) -> something ($WORD bits)."#);
 }
 
 fn config() -> Config {