Bug 1635158 - Change rustc option -Zno-landing-pads to -Cpanic=abort for ccov builds r=marco

The option -Zno-landing-pads has been removed from rustc (see rust-lang/rust#70175).
So replace it with '-Cpanic=abort -Zpanic_abort_tests'.

Differential Revision: https://phabricator.services.mozilla.com/D74028

Author: calixteman

browser/config/mozconfigs/linux64/code-coverage

@@ -13,4 +13,5 @@ ac_add_options --enable-coverage
 CLANG_LIB_DIR="$(cd $MOZ_FETCHES_DIR/clang/lib/clang/* && cd lib/linux && pwd)"
 export LDFLAGS="--coverage -L$CLANG_LIB_DIR"
 export LIBS="-lclang_rt.profile-x86_64"
-export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Zno-landing-pads -Clink-dead-code -Coverflow-checks=off"
+export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Cpanic=abort -Zpanic_abort_tests -Clink-dead-code -Coverflow-checks=off"
+export RUSTDOCFLAGS="-Cpanic=abort"

browser/config/mozconfigs/macosx64/code-coverage

@@ -10,4 +10,5 @@ ac_add_options --enable-coverage
 CLANG_LIB_DIR="$(cd $MOZ_FETCHES_DIR/clang/lib/clang/* && cd lib/darwin && pwd)"
 export LDFLAGS="-coverage -L$CLANG_LIB_DIR"
 export LIBS="-lclang_rt.profile_osx"
-export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Zno-landing-pads -Clink-dead-code -Coverflow-checks=off"
+export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Cpanic=abort -Zpanic_abort_tests -Clink-dead-code -Coverflow-checks=off"
+export RUSTDOCFLAGS="-Cpanic=abort"

browser/config/mozconfigs/win64/code-coverage

@@ -22,7 +22,8 @@ if [ -d "$MOZ_FETCHES_DIR/clang" ]; then
     export LDFLAGS="clang_rt.profile-x86_64.lib"
 fi
 
-export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Zno-landing-pads -Clink-dead-code -Coverflow-checks=off"
+export RUSTFLAGS="-Ccodegen-units=1 -Zprofile -Cpanic=abort -Zpanic_abort_tests -Clink-dead-code -Coverflow-checks=off"
+export RUSTDOCFLAGS="-Cpanic=abort"
 
 . "$topsrcdir/build/mozconfig.clang-cl"
 . "$topsrcdir/build/mozconfig.common.override"