Add WGSL support for slang-test (#5174)

* Use the assembly description as target when disassembling

I believe this is a bugfix.
It seems to have worked before because up until the WGSL case, the disassembler has been
the same executable as the one producing the binary to be disassembled.

* Add Tint as a downstream compiler

This closes issue #5104.

* Add downstream compiler for Tint.
 * Tint is wrapped in a shared library, 'slang-tint' available from [1].
 * The header file for slang-tint.dll is added in external/slang-tint-headers.
* Add some boilerplate for WGSL targets.
* Add an entry point test for WGSL.

[1] https://github.com/shader-slang/dawn/releases/tag/slang-tint-0

* Add WGSL_SPIRV as supported target for Glslang

* Add WebGPU support to slang-test

This helps to address issue #5051.

* Disable lots of crashing compute tests for 'wgpu'

This closes issue #5051.

---------

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/wgsl/entry-point.slang b/tests/wgsl/entry-point.slang
new file mode 100644
index 000000000..2e807c181
--- /dev/null
+++ b/tests/wgsl/entry-point.slang
@@ -0,0 +1,10 @@
+//TEST:SIMPLE(filecheck=CHECK): -target wgsl-spirv-asm
+//CHECK: OpEntryPoint
+
+RWStructuredBuffer<int> outputBuffer;
+
+[numthreads(1,1,1)]
+void computeMain()
+{
+    outputBuffer[0] = 42;
+}