Minimally adapt 2 new compiler tests for LDC

Author: kinke

tests/dmd/compilable/test21359.sh

@@ -5,6 +5,10 @@ $DMD -c -m${MODEL} -allinst -of${objfile} ${EXTRA_FILES}/${TEST_NAME}a.d -I${EXT
 
 # This test is brittle and might break in the future.
 # For now, ensure a specific AA TypeInfo isn't defined multiple times, as happened with DMD v2.111.0.
+
+# LDC: different TypeInfo emission strategy, test doesn't apply
+exit 0
+
 mangled_sym='_D14TypeInfo_HiAya6__initZ'
 num_typeinfo_syms=$(nm --defined-only ${objfile} | grep -F ${mangled_sym} | wc -l)
 if [[ "${num_typeinfo_syms}" -ne 1 ]]; then

tests/dmd/fail_compilation/fail19103.d

@@ -6,7 +6,7 @@ fail_compilation/fail19103.d(26):        class `C` defined here
 fail_compilation/fail19103.d(16): Error: no property `puts` for `s1` of type `fail19103.S1`
 fail_compilation/fail19103.d(30):        struct `S1` defined here
 fail_compilation/fail19103.d(18): Error: no property `puts` for type `S2`
-$p:druntime/import/core/stdc/stdio.d$($n$):        did you mean `core.stdc.stdio.puts`?
+$p:/core/stdc/stdio.d$($n$):        did you mean `core.stdc.stdio.puts`?
 ---
 */
 void main()