do not use colons in test names

Starting with meson 0.56, colons are used to separate the subproject name
from the test name.  Use dash or slash depending on what looks nicer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

tests/fp/meson.build

@@ -603,7 +603,7 @@ fptest_rounding_args = ['-r', 'all']
 # FIXME: i32_to_extF80 (broken), i64_to_extF80 (broken)
 #        extF80_roundToInt (broken)
 foreach k, v : softfloat_conv_tests
-  test('fp-test:' + k, fptest,
+  test('fp-test-' + k, fptest,
        args: fptest_args + fptest_rounding_args + v.split(),
        suite: ['softfloat', 'softfloat-conv'])
 endforeach
@@ -612,13 +612,13 @@ endforeach
 #        extF80_{mulAdd} (missing)
 foreach k, v : softfloat_tests
   extF80_broken = ['lt_quiet', 'rem'].contains(k)
-  test('fp-test:' + k, fptest,
+  test('fp-test-' + k, fptest,
        args: fptest_args + fptest_rounding_args +
              ['f16_' + k, 'f32_' + k, 'f64_' + k, 'f128_' + k] +
              (extF80_broken ? [] : ['extF80_' + k]),
        suite: ['softfloat', 'softfloat-' + v])
 endforeach
-test('fp-test:mulAdd', fptest,
+test('fp-test-mulAdd', fptest,
      # no fptest_rounding_args
      args: fptest_args +
            ['f16_mulAdd', 'f32_mulAdd', 'f64_mulAdd', 'f128_mulAdd'],

tests/qtest/meson.build

@@ -251,7 +251,7 @@ foreach dir : target_dirs
       }
     endif
     # FIXME: missing dependency on the emulator binary and qemu-img
-    test('qtest-@0@: @1@'.format(target_base, test),
+    test('qtest-@0@/@1@'.format(target_base, test),
          qtest_executables[test],
          depends: [test_deps, qtest_emulator],
          env: qtest_env,