Remove support for the -no-checking flag (#392)

* Remove support for the -no-checking flag

Fixes #381
Fixes #383
Work on #382

- No longer expose flag through API (`SLANG_COMPILE_FLAG_NO_CHECKING`) and command-line (`-no-checking`) options

- Remove all logic in `check.cpp` that was withholding diagnostics (including errors) when the no-checking mode was enabled

- Remove `HiddenImplicitCastExpr`, which was only created to support no-checking mode (it represented an implicit cast that our checking through was needed, but couldn't emit because it might be wrong)

- Remove logic for storing function bodies as raw token lists when checking is turned off. I'm leaving in the `UnparsedStmt` AST node in case we ever need/want to lazily parse and check function bodies down the line.

- Remove a few of the code-generation paths we had to contend with, but keep the comment about them in place.

- Remove GLSL-based tests that can't meaningfully work with the new approach.

- Fix other tests that used a GLSL baseline so that their GLSL compiles with `-pass-through glslang` instead of invoking `slang` with the `-no-checking` flag.

- Remove tests that were explicitly added to test the "rewriter + IR" path, since that is no longer supported.

There is more cleanup that can be done here, now that we know that AST-based rewrite and IR will never co-exist, but it is probably easier to deal with that as part of removing the AST-based rewrite path.

We've lost some test coverage here, but actually not too much if we consider that we are dropping GLSL input anyway.

* Fixup: test runner was mis-counting ignored tests

* Fixup: turn on dumping on test failure under Travis

* Fixup: enable extensions in Linux build of glslang

1 files changed, 0 insertions, 19 deletions

diff --git a/tests/compute/rewriter.hlsl b/tests/compute/rewriter.hlsl
deleted file mode 100644
index 35a630c62..000000000
--- a/tests/compute/rewriter.hlsl
+++ /dev/null
@@ -1,19 +0,0 @@
-//TEST(compute):HLSL_COMPUTE:-xslang -no-checking -xslang -use-ir
-//TEST_INPUT:ubuffer(data=[0 1 2 3], stride=4):dxbinding(0),glbinding(0),out
-
-// Test that we can use Slang libraries that require IR cross-compilation
-// (e.g., libraries that use generics) while writing the main code in
-// vanilla HLSL/GLSL without checking enabled.
-
-import rewriter;
-
-RWStructuredBuffer<int> outputBuffer : register(u0);
-
-[numthreads(4, 1, 1)]
-void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
-{
-	uint tid = dispatchThreadID.x;
-	int inVal = outputBuffer[tid];
-	int outVal = test(inVal);
-	outputBuffer[tid] = outVal;
-}
\ No newline at end of file