Initial support for immutable lambda expressions. (#6914)

* Initial support for immutable lambda expressions.

* More diagnostics, and langauge server fix.

* Language server fix.

* Fix bug identified in review.

* Add expected result.

* Update expected result.

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/language-feature/lambda/lambda-diagnostics.slang b/tests/language-feature/lambda/lambda-diagnostics.slang
new file mode 100644
index 000000000..951df093b
--- /dev/null
+++ b/tests/language-feature/lambda/lambda-diagnostics.slang
@@ -0,0 +1,23 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv
+
+[numthreads(1,1,1)]
+void test()
+{
+    int c = 0;
+    let lam = (int a) => {
+        //CHECK:([[# @LINE+1]]): error 30011:
+        c = a + 1;
+    };
+    let lam1 = (int a) => {
+        if (a > 0)
+            return 1;
+        else
+            //CHECK:([[# @LINE+1]]): error 30111:
+            return 3.0;
+    };
+    RayQuery q;
+    let lam2 = (int a) => {
+        //CHECK:([[# @LINE+1]]): error 30112:
+        q.Abort();
+    };
+}
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