Re-enable SkSL tests in CanvasKit/wasm.

We can disable SkSL tests on a case-by-case basis via the skip list in
`run-wasm-gm-tests.html`. This doesn't allow us to exclude by GPU, but
in practice the Golo machines tend to all have a uniform setup (with
Quadro P400s) so we can just work around failures as they come up.

Change-Id: I46f709691282e576d00d5191e9dbd46b740e4a5f
Bug: skia:12876
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/501682
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>

modules/canvaskit/compile_gm.sh

@@ -195,7 +195,6 @@ GLOBIGNORE+="tests/CodecTest.cpp:"\
 "tests/FontMgrAndroidParserTest.cpp:"\
 "tests/FontMgrFontConfigTest.cpp:"\
 "tests/TypefaceMacTest.cpp:"\
-"tests/SkSLTest.cpp:"\
 "tests/SkVMTest.cpp:"
 
 # These tests do complex things with TestContexts, which is not easily supported for the WASM

tools/run-wasm-gm-tests/run-wasm-gm-tests.html

@@ -213,6 +213,9 @@ array of the test names and what they drew.
     // Apparently fail only on release builds / bots
     'FlushFinishedProcTest',
     'WritePixelsNonTextureMSAA_Gpu',
+
+    // These SkSL tests fail on the Quadro P400s in the Golo
+    'SkSLMatrixFoldingES2_GPU'
   ]);
 
   async function RunTests(GM) {