[Metal] Fix global constant array emit. (shader-slang#4392)

* [Metal] Fix global constant array emit.

* Try enable more tests.

Author: csyonghe

source/slang/slang-emit-c-like.cpp

@@ -1852,14 +1852,16 @@ void CLikeSourceEmitter::emitInstResultDecl(IRInst* inst)
         case SourceLanguage::HLSL:
         case SourceLanguage::C:
         case SourceLanguage::CPP:
-            m_writer->emit("static ");
+            m_writer->emit("static const ");
+            break;
+        case SourceLanguage::Metal:
+            m_writer->emit("constant ");
             break;
-
         default:
+            m_writer->emit("const ");
             break;
         }
 
-        m_writer->emit("const ");
     }
 
     emitType(type, getName(inst));

tests/compute/static-const-array.slang

@@ -3,7 +3,6 @@
 //TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -shaderobj
 //TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj
 //TEST(compute):COMPARE_COMPUTE_EX:-cpu -slang -compute -shaderobj
-//DISABLE_TEST(compute):COMPARE_COMPUTE:-slang -shaderobj -mtl
 
 //TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out, name outputBuffer
 RWStructuredBuffer<int> outputBuffer;

tests/compute/static-const-matrix-array.slang

@@ -3,7 +3,6 @@
 //TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -output-using-type -shaderobj
 //TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -output-using-type -shaderobj
 //TEST(compute):COMPARE_COMPUTE_EX:-cpu -slang -compute -output-using-type -shaderobj
-//DISABLE_TEST(compute):COMPARE_COMPUTE:-slang -shaderobj -mtl
 
 //TEST_INPUT:ubuffer(data=[0 0 0 0  0 0 0 0], stride=4):out, name outputBuffer
 RWStructuredBuffer<float> outputBuffer;

tests/compute/static-const-vector-array.slang

@@ -3,7 +3,6 @@
 //TEST(compute):COMPARE_COMPUTE_EX:-slang -compute -output-using-type -shaderobj
 //TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -output-using-type -shaderobj
 //TEST(compute):COMPARE_COMPUTE_EX:-cpu -slang -compute -output-using-type -shaderobj
-//DISABLE_TEST(compute):COMPARE_COMPUTE:-slang -shaderobj -mtl
 
 //TEST_INPUT:ubuffer(data=[0 0 0 0  0 0 0 0], stride=4):out, name outputBuffer
 RWStructuredBuffer<float> outputBuffer;