Rename tests from `*.spire` to `*.slang`

Many of the existing test cases were being skipped on accident, because their file names used `.spire` and the test tool was now looking for `.slang`

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/diagnostics/while-predicate-type.slang b/tests/diagnostics/while-predicate-type.slang
new file mode 100644
index 000000000..14ce45533
--- /dev/null
+++ b/tests/diagnostics/while-predicate-type.slang
@@ -0,0 +1,10 @@
+//TEST:SIMPLE:
+// bad type for `while` predicate
+
+struct S {};
+
+void foo()
+{
+	S s;
+	while(s) {break;}
+}