[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
rust-lang#69478 (comment).

Author: dylanmckay

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]
@@ -46,13 +46,13 @@ error: def-path(bar::<impl foo::Foo>::baz)
 LL |         #[rustc_def_path]
    |         ^^^^^^^^^^^^^^^^^
 
-error: symbol-name(_ZN209_$LT$$u5b$$RF$dyn$u20$impl1..Foo$u2b$Assoc$u20$$u3d$$u20$extern$u20$$u22$C$u22$$u20$fn$LP$$RF$u8$C$$u20$...$RP$$u2b$impl1..AutoTrait$u3b$$u20$3$u5d$$u20$as$u20$impl1..main..$u7b$$u7b$closure$u7d$$u7d$..Bar$GT$6method17SYMBOL_HASHE)
+error: symbol-name(_ZN209_$LT$$u5b$$RF$dyn$u20$impl1..Foo$u2b$Assoc$u20$$u3d$$u20$extern$u20$$u22$C$u22$$u20$fn$LP$$RF$u8$C$$u20$...$RP$$u2b$impl1..AutoTrait$u3b$$u20$3$u5d$$u20$as$u20$impl1..main..$u7b$$u7b$closure$u7d$$u7d$..Bar$GT$6method17hefcb557fc1aaf107E)
   --> $DIR/impl1.rs:64:13
    |
 LL |             #[rustc_symbol_name]
    |             ^^^^^^^^^^^^^^^^^^^^
 
-error: demangling(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8, ::.)+impl1::AutoTrait; 3] as impl1::main::{{closure}}::Bar>::method::SYMBOL_HASH)
+error: demangling(<[&dyn impl1::Foo+Assoc = extern "C" fn(&u8, ::.)+impl1::AutoTrait; 3] as impl1::main::{{closure}}::Bar>::method::hefcb557fc1aaf107)
   --> $DIR/impl1.rs:64:13
    |
 LL |             #[rustc_symbol_name]

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]