Only rerun the API tests in dwarfimporter-only mode.

This removes >70 tests from the list of tests that are being rerun.  The REPL
doesn't really benefit from DWARFImporter, since there is no deb ug info in the
victim process, so it makes no sense to test this configuration.

Author: adrian-prantl

utils/build-script-impl

@@ -2783,6 +2783,7 @@ for host in "${ALL_HOSTS[@]}"; do
                 fi
 
                 FILTER_SWIFT_OPTION="--filter=[sS]wift"
+                FILTER_SWIFT_API_OPTION="--filter=lang/swift"
                 LLVM_LIT_FILTER_ARG=""
                 if [[ "$(true_false ${LLDB_TEST_SWIFT_ONLY})" == "TRUE" ]]; then
                     LLVM_LIT_FILTER_ARG="${FILTER_SWIFT_OPTION}"
@@ -2798,11 +2799,11 @@ for host in "${ALL_HOSTS[@]}"; do
                     call "${llvm_build_dir}/bin/llvm-lit" \
                          "${lldb_build_dir}/test" \
                          ${LLVM_LIT_ARGS} ${LLVM_LIT_FILTER_ARG}
-                echo "--- Rerun LLDB Swift tests (using only DWARFImporter) ---"
+                echo "--- Rerun LLDB Swift API tests (using only DWARFImporter) ---"
                 with_pushd ${results_dir} \
                     call "${llvm_build_dir}/bin/llvm-lit" \
                          "${lldb_build_dir}/test" \
-                         ${LLVM_LIT_ARGS} ${FILTER_SWIFT_OPTION} \
+                         ${LLVM_LIT_ARGS} ${FILTER_SWIFT_API_OPTION} \
                          --param dotest-args="--setting symbols.use-swift-clangimporter=false"
 
                 if [[ -x "${LLDB_TEST_SWIFT_COMPATIBILITY}" ]] ; then