Symlink lld and dsymutil in correct build_depsbindir when `USE_SYSTEM…

…_LLD=1` (#53050)

Fixes #53049.

Two things are addressed:

1. `dsymutil` wasn't linked
2. `lld` was put in `build_bindir`, but on install was looked for in
`build_depsbindir`

base/Makefile

@@ -205,18 +205,24 @@ $(build_bindir)/7z$(EXE):
 	rm -f "$@" && \
 	ln -svf "$(7Z_PATH)" "$@"
 
-symlink_lld: $(build_bindir)/lld$(EXE)
+symlink_llvm_utils: $(build_depsbindir)/lld$(EXE) $(build_depsbindir)/dsymutil$(EXE)
 
 ifneq ($(USE_SYSTEM_LLD),0)
-SYMLINK_SYSTEM_LIBRARIES += symlink_lld
+SYMLINK_SYSTEM_LIBRARIES += symlink_llvm_utils
 LLD_PATH := $(shell which lld$(EXE))
+DSYMUTIL_PATH := $(shell which dsymutil$(EXE))
 endif
 
-$(build_bindir)/lld$(EXE):
+$(build_depsbindir)/lld$(EXE):
 	[ -e "$(LLD_PATH)" ] && \
 	rm -f "$@" && \
 	ln -svf "$(LLD_PATH)" "$@"
 
+$(build_depsbindir)/dsymutil$(EXE):
+	[ -e "$(DSYMUTIL_PATH)" ] && \
+	rm -f "$@" && \
+	ln -svf "$(DSYMUTIL_PATH)" "$@"
+
 # the following excludes: libuv.a, libutf8proc.a
 
 ifneq ($(USE_SYSTEM_LIBM),0)