Auto merge of #1554 - RalfJung:rustup, r=RalfJung

rustup; support panic=abort on Windows

Fixes https://github.com/rust-lang/miri/issues/1058

rust-version

@@ -1 +1 @@
-5e449b9adff463455743291b0c1f76feec092992
+41507ed0d57eba71adc20a021a19b64322162f04

tests/compile-fail/panic/panic_abort1.rs

@@ -1,6 +1,5 @@
 // error-pattern: the evaluated program aborted execution
 // compile-flags: -C panic=abort
-// ignore-windows: windows panics via inline assembly (FIXME)
 
 fn main() {
     std::panic!("panicking from libstd");

tests/compile-fail/panic/panic_abort2.rs

@@ -1,6 +1,5 @@
 // error-pattern: the evaluated program aborted execution
 // compile-flags: -C panic=abort
-// ignore-windows: windows panics via inline assembly (FIXME)
 
 fn main() {
     std::panic!("{}-panicking from libstd", 42);

tests/compile-fail/panic/panic_abort3.rs

@@ -1,6 +1,5 @@
 // error-pattern: the evaluated program aborted execution
 // compile-flags: -C panic=abort
-// ignore-windows: windows panics via inline assembly (FIXME)
 
 fn main() {
     core::panic!("panicking from libcore");

tests/compile-fail/panic/panic_abort4.rs

@@ -1,6 +1,5 @@
 // error-pattern: the evaluated program aborted execution
 // compile-flags: -C panic=abort
-// ignore-windows: windows panics via inline assembly (FIXME)
 
 fn main() {
     core::panic!("{}-panicking from libcore", 42);