Rollup merge of #102031 - andrewpollack:compiler-tests-backtrace, r=tmandry

Adding ignore fuchsia tests for Backtrace, ErrorKind cases

Tests where Backtrace parses are required (invalid since Fuchsia backtraces are not symbolized), and test where ErrorKind is not properly translated from a Fuchsia-style to Unix-style error code

cc. ```@djkoloski```

r? ```@tmandry```

src/test/ui/backtrace.rs

@@ -4,6 +4,7 @@
 // ignore-openbsd no support for libbacktrace without filename
 // ignore-sgx no processes
 // ignore-msvc see #62897 and `backtrace-debuginfo.rs` test
+// ignore-fuchsia Backtraces not symbolized
 // compile-flags:-g
 // compile-flags:-Cstrip=none
 

src/test/ui/panics/issue-47429-short-backtraces.legacy.run.stderr

@@ -1,4 +1,4 @@
-thread 'main' panicked at 'explicit panic', $DIR/issue-47429-short-backtraces.rs:22:5
+thread 'main' panicked at 'explicit panic', $DIR/issue-47429-short-backtraces.rs:23:5
 stack backtrace:
    0: std::panicking::begin_panic
    1: issue_47429_short_backtraces::main

src/test/ui/panics/issue-47429-short-backtraces.rs

@@ -12,6 +12,7 @@
 // ignore-wasm no panic or subprocess support
 // ignore-emscripten no panic or subprocess support
 // ignore-sgx no subprocess support
+// ignore-fuchsia Backtraces not symbolized
 
 // NOTE(eddyb) output differs between symbol mangling schemes
 // revisions: legacy v0

src/test/ui/panics/issue-47429-short-backtraces.v0.run.stderr

@@ -1,4 +1,4 @@
-thread 'main' panicked at 'explicit panic', $DIR/issue-47429-short-backtraces.rs:22:5
+thread 'main' panicked at 'explicit panic', $DIR/issue-47429-short-backtraces.rs:23:5
 stack backtrace:
    0: std::panicking::begin_panic::<&str>
    1: issue_47429_short_backtraces::main

src/test/ui/panics/runtime-switch.legacy.run.stderr

@@ -1,4 +1,4 @@
-thread 'main' panicked at 'explicit panic', $DIR/runtime-switch.rs:25:5
+thread 'main' panicked at 'explicit panic', $DIR/runtime-switch.rs:26:5
 stack backtrace:
    0: std::panicking::begin_panic
    1: runtime_switch::main

src/test/ui/panics/runtime-switch.rs

@@ -12,6 +12,7 @@
 // ignore-wasm no panic or subprocess support
 // ignore-emscripten no panic or subprocess support
 // ignore-sgx no subprocess support
+// ignore-fuchsia Backtrace not symbolized
 
 // NOTE(eddyb) output differs between symbol mangling schemes
 // revisions: legacy v0

src/test/ui/panics/runtime-switch.v0.run.stderr

@@ -1,4 +1,4 @@
-thread 'main' panicked at 'explicit panic', $DIR/runtime-switch.rs:25:5
+thread 'main' panicked at 'explicit panic', $DIR/runtime-switch.rs:26:5
 stack backtrace:
    0: std::panicking::begin_panic::<&str>
    1: runtime_switch::main

src/test/ui/process/process-spawn-nonexistent.rs

@@ -1,6 +1,7 @@
 // run-pass
 // ignore-emscripten no processes
 // ignore-sgx no processes
+// ignore-fuchsia ErrorKind not translated
 
 use std::io::ErrorKind;
 use std::process::Command;

src/test/ui/runtime/backtrace-debuginfo.rs

@@ -12,6 +12,7 @@
 // ignore-pretty issue #37195
 // ignore-emscripten spawning processes is not supported
 // ignore-sgx no processes
+// ignore-fuchsia Backtrace not symbolized, trace different line alignment
 
 use std::env;
 

src/test/ui/std-backtrace.rs

@@ -4,6 +4,7 @@
 // ignore-openbsd no support for libbacktrace without filename
 // ignore-sgx no processes
 // ignore-msvc see #62897 and `backtrace-debuginfo.rs` test
+// ignore-fuchsia Backtraces not symbolized
 // compile-flags:-g
 // compile-flags:-Cstrip=none