Include the llvm-size tool like other binutils-like tools

This was requested in
https://github.com/mstorsjo/llvm-mingw/issues/320.

build-llvm.sh

@@ -301,7 +301,7 @@ cmake \
     -DLLVM_TARGETS_TO_BUILD="ARM;AArch64;X86" \
     -DLLVM_INSTALL_TOOLCHAIN_ONLY=$TOOLCHAIN_ONLY \
     -DLLVM_LINK_LLVM_DYLIB=$LINK_DYLIB \
-    -DLLVM_TOOLCHAIN_TOOLS="llvm-ar;llvm-ranlib;llvm-objdump;llvm-rc;llvm-cvtres;llvm-nm;llvm-strings;llvm-readobj;llvm-dlltool;llvm-pdbutil;llvm-objcopy;llvm-strip;llvm-cov;llvm-profdata;llvm-addr2line;llvm-symbolizer;llvm-windres;llvm-ml;llvm-readelf" \
+    -DLLVM_TOOLCHAIN_TOOLS="llvm-ar;llvm-ranlib;llvm-objdump;llvm-rc;llvm-cvtres;llvm-nm;llvm-strings;llvm-readobj;llvm-dlltool;llvm-pdbutil;llvm-objcopy;llvm-strip;llvm-cov;llvm-profdata;llvm-addr2line;llvm-symbolizer;llvm-windres;llvm-ml;llvm-readelf;llvm-size" \
     ${HOST+-DLLVM_HOST_TRIPLE=$HOST} \
     $CMAKEFLAGS \
     ..

install-wrappers.sh

@@ -93,7 +93,7 @@ for arch in $ARCHS; do
         for exec in clang clang++ gcc g++ c++ as; do
             ln -sf clang-target-wrapper$CTW_SUFFIX $arch-w64-$target_os-$exec$CTW_LINK_SUFFIX
         done
-        for exec in addr2line ar ranlib nm objcopy readelf strings strip llvm-ar llvm-ranlib; do
+        for exec in addr2line ar ranlib nm objcopy readelf size strings strip llvm-ar llvm-ranlib; do
             if [ -n "$HOST" ]; then
                 link_target=llvm-wrapper
             else
@@ -129,7 +129,7 @@ if [ -n "$EXEEXT" ]; then
     # we are installing wrappers for.
     case $ARCHS in
     *$HOST_ARCH*)
-        for exec in clang clang++ gcc g++ c++ addr2line ar dlltool ranlib nm objcopy readelf strings strip windres; do
+        for exec in clang clang++ gcc g++ c++ addr2line ar dlltool ranlib nm objcopy readelf size strings strip windres; do
             ln -sf $HOST-$exec$EXEEXT $exec$EXEEXT
         done
         for exec in cc c99 c11; do

strip-llvm.sh

@@ -81,7 +81,7 @@ for i in bugpoint c-index-test clang-* clangd diagtool dsymutil find-all-symbols
             rm -f $i
         fi
         ;;
-    llvm-ar|llvm-cvtres|llvm-dlltool|llvm-nm|llvm-objdump|llvm-ranlib|llvm-rc|llvm-readobj|llvm-strings|llvm-pdbutil|llvm-objcopy|llvm-strip|llvm-cov|llvm-profdata|llvm-addr2line|llvm-symbolizer|llvm-wrapper|llvm-windres|llvm-ml|llvm-readelf)
+    llvm-ar|llvm-cvtres|llvm-dlltool|llvm-nm|llvm-objdump|llvm-ranlib|llvm-rc|llvm-readobj|llvm-strings|llvm-pdbutil|llvm-objcopy|llvm-strip|llvm-cov|llvm-profdata|llvm-addr2line|llvm-symbolizer|llvm-wrapper|llvm-windres|llvm-ml|llvm-readelf|llvm-size)
         ;;
     ld64.lld|wasm-ld)
         if [ -e $i ]; then